Maxwell Series Toilet Repair Parts
by Gerber

Keep your Gerber Maxwell toilet running like new with repair and replacement parts from PlumbingSupply.com®. From new trip levers and quality replacement toilet seats to flush valves and gaskets, we've got what you need!
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Gerber Maxwell 1-pc toiletOne-Piece
Model #21-017
Gerber Maxwell one-piece toilet - model number 21-018One-Piece
Model #21-018
Gerber Maxwell Two-Piece
Tanks #28-490 & 28-492
Gerber Maxwell Two-Piece
Tanks #28-494 & 28-495
Gerber Maxwell Two-Piece
Tank #28-990
Gerber Maxwell Two-Piece
Tanks #28-992 & 28-994
Gerber Maxwell Two-Piece
Tank #28-995
Gerber Maxwell SE Two-Piece
Tanks #28-170 & 28-174
Gerber Maxwell SE Two-Piece
Tank #28-175
Gerber Maxwell LX Two-Piece
Tank #28-190
Gerber Maxwell Dual Flush
Tanks #DF-28-190, DF-28-192, DF-28-194, & DF-28-195
Gerber Maxwell Dual Flush
Tanks #DF-28-990 & DF-28-992
Gerber Maxwell Dual Flush
Tanks #DF-28-994
Gerber Maxwell Dual Flush
Tanks #DF-28-995
Gerber Maxwell Back Outlet
Tank #28-980
Gerber Maxwell wall-mounted toiletWall Hung
Tank #28-970

Replacement Parts for Gerber Maxwell Toilets
One-Piece Model # 21-017

Parts diagram for Maxwell 21-017 one-piece toilets
Item # Part # Description Price & Quantity
1 99-646 Pilot Fill Valve - Replaced by 99-300 $25.06 Enter a quantity and
2 385 Fill Valve Cap Assembly Repair Kit - includes diaphragm and float lever fulcrum $5.87 Enter a quantity and
3 218 Refill Tube & Angle Adapter $4.67 Enter a quantity and
4 99-657 Flush Valve - includes flapper and chain $20.88 Enter a quantity and
5 99-663 Flapper $8.75 Enter a quantity and
6 99-664 Side Mount Toilet Tank Lever $22.88 Enter a quantity and
7 1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
8 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Toilets
One-Piece Model # 21-018

Parts diagram for Maxwell 21-018 one-piece toilets
Item # Part # Description Price & Quantity
1 GA711021
(old #99-035)		 Fill Valve $14.10 Enter a quantity and
2 385 Fill Valve Cap Assembly Repair Kit - includes diaphragm and float lever fulcrum $5.87 Enter a quantity and
3 218 Refill Tube & Angle Adapter $4.67 Enter a quantity and
4 99-036 Flush Valve - includes flapper and chain Discontinued Enter a quantity and
99-796 Possible Alternative:
Flush Valve - 7-7/8" tall overflow (from inside bottom of tank) - includes flapper and chain - overflow may need to be cut down to height - Note: modified flush valves cannot be returned		 $20.17 Enter a quantity and
5 99-827 Flapper with Chain - Replaced by 99-770 $9.22 Enter a quantity and
6 99-841 Front Mount Toilet Tank Lever - Chrome $11.10 Enter a quantity and
99-840 Front Mount Toilet Tank Lever - White $11.05 Enter a quantity and
7 1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
8 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Toilets
Two-Piece Model - Tanks # 28-490 & 28-492

Parts diagram for Maxwell two-piece toilets - tank numbers 28-490 and 28-492
Item # Part # Description Price & Quantity
1 99-651 Fill Valve - Replaced by 400A $16.62 Enter a quantity and
2 385 Fill Valve Cap Assembly Repair Kit - includes diaphragm and float lever fulcrum $5.87 Enter a quantity and
3 218 Refill Tube & Angle Adapter $4.67 Enter a quantity and
4 99-652 Flush Valve - includes flapper and chain $12.69 Enter a quantity and
5 99-647 Flapper - with chain and green baffle $8.13 Enter a quantity and
6 99-585 Front Mount Toilet Tank Lever - Chrome $10.44
99-586 Front Mount Toilet Tank Lever - White $10.69 Enter a quantity and
7 99-537 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts $11.78 Enter a quantity and
8 99-582 Tank Gasket ONLY - Discontinued Replaced with
99-537 above
9 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
10 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Toilets
Two-Piece Model - Tanks # 28-494 & 28-495

Parts diagram for Maxwell two-piece toilets - tank numbers 28-494 and 28-495
Item # Part # Description Price & Quantity
1 99-651 Fill Valve - Replaced by 400A $16.62 Enter a quantity and
2 385 Fill Valve Cap Assembly Repair Kit - includes diaphragm and float lever fulcrum $5.87 Enter a quantity and
3 218 Refill Tube & Angle Adapter $4.67 Enter a quantity and
4 99-648 Flush Valve - includes flapper and chain $11.66 Enter a quantity and
5 99-647 Flapper - with chain and green baffle $8.13 Enter a quantity and
6 99-585 Front Mount Toilet Tank Lever - Chrome $10.44
99-586 Front Mount Toilet Tank Lever - White $10.69 Enter a quantity and
7 99-537 Tank Assembly Kit - includes tank gasket, bolts, and washers $11.78 Enter a quantity and
8 99-582 Tank Gasket ONLY - Discontinued Replaced with
99-537 above
9 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
10 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Toilets
Two-Piece Model - Tank # 28-990

Parts diagram for Maxwell two-piece toilets - tank number 28-990
Item # Part # Description Price & Quantity
1 99-842 Fill Valve - Replaced by GA711022 $18.24 Enter a quantity and
2 99-004 Flush Valve - includes flapper and chain - Replaced by GA712003 $14.90 Enter a quantity and
3 99-770 Flapper with Chain $9.22 Enter a quantity and
4 99-841 Front Mount Toilet Tank Lever - Chrome $11.10 Enter a quantity and
99-840 Front Mount Toilet Tank Lever - White $11.05 Enter a quantity and
5 99-828 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts - Replaced by #99-660 $12.80 Enter a quantity and
6 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
7 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Toilets
Two-Piece Model - Tanks # 28-992 & 28-994

Parts diagram for Maxwell two-piece toilets - tank numbers 28-992 and 28-994
Item # Part # Description Price & Quantity
1 99-843 Fill Valve $13.64 Enter a quantity and
2 99-004 Flush Valve - includes flapper and chain - Replaced by GA712003 $14.90 Enter a quantity and
3 99-770 Flapper with Chain $9.22 Enter a quantity and
4 99-841 Front Mount Toilet Tank Lever - Chrome $11.10 Enter a quantity and
99-840 Front Mount Toilet Tank Lever - White $11.05 Enter a quantity and
5 99-828 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts - Replaced by #99-660 $12.80 Enter a quantity and
6 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
7 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Toilets
Two-Piece Model - Tank # 28-995

Parts diagram for Maxwell two-piece toilets - tank number 28-995
Item # Part # Description Price & Quantity
1 99-845 Fill Valve $13.62 Enter a quantity and
2 99-004 Flush Valve - includes flapper and chain - Replaced by GA712003 $14.90 Enter a quantity and
3 99-770 Flapper with Chain $9.22 Enter a quantity and
4 99-841 Front Mount Toilet Tank Lever - Chrome $11.10 Enter a quantity and
99-840 Front Mount Toilet Tank Lever - White $11.05 Enter a quantity and
5 99-828 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts - Replaced by #99-660 $12.80 Enter a quantity and
6 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
7 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell SE Toilets
Two-Piece Model - Tanks # 28-170 & 28-174

Parts diagram for Maxwell SE two-piece toilets - tank numbers 28-170 and 28-174
Item # Part # Description Price & Quantity
1 99-023 Fill Valve $14.94 Enter a quantity and
2 99-652 Flush Valve - includes flapper and chain $12.69 Enter a quantity and
3 99-647 Flapper - with chain and green baffle $8.13 Enter a quantity and
4 99-024 Front Mount Toilet Tank Lever - White $23.87 Enter a quantity and
5 99-782 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts - Replaced by #GA714012 $10.22 Enter a quantity and
6 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
7 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell SE Toilets
Two-Piece Model - Tank # 28-175

Parts diagram for Maxwell SE two-piece toilets - tank number 28-175
Item # Part # Description Price & Quantity
1 99-023 Fill Valve $14.94 Enter a quantity and
2 99-027 2" Flush Valve - includes flapper and chain $7.57 Enter a quantity and
3 99-647 Flapper - with chain and green baffle $8.13 Enter a quantity and
4 99-024 Front Mount Toilet Tank Lever - White $23.87 Enter a quantity and
5 99-782 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts - Replaced by #GA714012 $10.22 Enter a quantity and
6 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
7 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Back-Outlet Toilets
Two-Piece Model - Tank # 28-980

Parts diagram for Maxwell back outlet toilets - tank number 28-980
Item # Part # Description Price & Quantity
1 99-011 Fill Valve - Replaced by 99-300 $25.06 Enter a quantity and
2 385 Fill Valve Cap Assembly Repair Kit - includes diaphragm and float lever fulcrum $5.87 Enter a quantity and
3 218 Refill Tube & Angle Adapter $4.67 Enter a quantity and
4 99-006 Flush Valve - includes flapper and chain $20.99 Enter a quantity and
5 99-827 Flapper with Chain - Replaced by 99-788 $10.37 Enter a quantity and
6 99-841 Front Mount Toilet Tank Lever - Chrome $11.10 Enter a quantity and
99-840 Front Mount Toilet Tank Lever - White $11.05 Enter a quantity and
7 99-660 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts $12.80 Enter a quantity and
8 WF3 "Will Fit" Tank Gasket ONLY $8.87 Enter a quantity and
8 1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
9 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Wall-Hung Toilets
Two-Piece Model - Tank # 28-970

Parts diagram for Maxwell wall-mounted toilets - tank number 28-970
Item # Part # Description Price & Quantity
1 99-844 Pilot Fill Valve - Replaced by 99-300 $25.06 Enter a quantity and
2 385 Fill Valve Cap Assembly Repair Kit - for 99-300 fill valve, includes diaphragm and float lever fulcrum $5.87 Enter a quantity and
3 218 Refill Tube & Angle Adapter - for 99-300 fill valve $4.67 Enter a quantity and
4 99-793 Flush Valve - includes flapper and chain $20.78 Enter a quantity and
5 99-827 Flapper with Chain - Replaced by 99-788 $10.37 Enter a quantity and
6 99-841 Front Mount Toilet Tank Lever - Chrome $11.10 Enter a quantity and
99-840 Front Mount Toilet Tank Lever - White $11.05 Enter a quantity and
7 99-660 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts $12.80 Enter a quantity and
8 WF3 "Will Fit" Tank Gasket ONLY $8.87 Enter a quantity and
9 1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and

Replacement Parts for Gerber Maxwell LX 1.6 GPF Flush Toilets
Two-Piece Model - Tank # 28-190 - (G0021102)

Parts diagram for Maxwell LX 1.6 gpf two-piece toilets - tank number 28-190
Item # Part # Description Price & Quantity
1 99-023 Fill Valve $14.94 Enter a quantity and
2 99-027 2" Flush Valve - includes flapper and chain $7.57 Enter a quantity and
3 99-647 Flapper - with chain and green baffle $23.99 Enter a quantity and
4 99-782 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts - Replaced by #GA714012 $10.22 Enter a quantity and
5 99-024 Front Mount Toilet Tank Lever - White $23.87 Enter a quantity and
6 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
7 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Dual Flush Toilets
Two-Piece Model - Tanks # DF-28-190, DF-28-192, DF-28-194, & DF-28-195

Parts diagram for Maxwell dual flush two-piece toilets - tank numbers DF-28-190, DF-28-192, DF-28-194, and DF-28-195
Item # Part # Description Price & Quantity
1 99-790 Fill Valve $22.50 Enter a quantity and
2 99-791 Dual Flush Valve $18.24 Enter a quantity and
3 99-792 Top Mount Push Button Assembly - Chrome $23.99 Enter a quantity and
4 99-782 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts - Replaced by #GA714012 $10.22 Enter a quantity and
5 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
6 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Dual Flush Toilets
Two-Piece Model - Tanks # DF-28-990 & DF-28-992

Parts diagram for Maxwell dual flush two-piece toilets - tank numbers DF-28-990 and DF-28-992
Item # Part # Description Price & Quantity
1 99-023 Fill Valve $14.94 Enter a quantity and
2 99-031 Dual Flush Valve $19.99 Enter a quantity and
3 99-034 Top Mount Push Button Assembly - White $22.10 Enter a quantity and
4 99-660 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts $12.80 Enter a quantity and
5 WF3 "Will Fit" Tank Gasket ONLY $8.87 Enter a quantity and
6 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
7 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Dual Flush Toilets
Two-Piece Model - Tank # DF-28-994

Parts diagram for Maxwell dual flush two-piece toilets - tank DF-28-994
Item # Part # Description Price & Quantity
1 99-030 Fill Valve - Replaced by 99-300 $25.06 Enter a quantity and
2 385 Fill Valve Cap Assembly Repair Kit - includes diaphragm and float lever fulcrum $5.87 Enter a quantity and
3 218 Refill Tube & Angle Adapter $4.67 Enter a quantity and
4 99-031 Dual Flush Valve $19.99 Enter a quantity and
5 99-034 Top Mount Push Button Assembly - White $22.10 Enter a quantity and
6 99-660 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts $12.80 Enter a quantity and
7 WF3 "Will Fit" Tank Gasket ONLY $8.87 Enter a quantity and
8 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
9 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

Replacement Parts for Gerber Maxwell Dual Flush Toilets
Two-Piece Model - Tank # DF-28-995

Parts diagram for Maxwell dual flush two-piece toilets - DF-28-995
Item # Part # Description Price & Quantity
1 99-030 Fill Valve - Replaced by 99-300 $25.06 Enter a quantity and
2 385 Fill Valve Cap Assembly Repair Kit - includes diaphragm and float lever fulcrum $5.87 Enter a quantity and
3 218 Refill Tube & Angle Adapter $4.67 Enter a quantity and
4 99-033 Dual Flush Valve $20.97 Enter a quantity and
5 99-034 Top Mount Push Button Assembly - White $22.10 Enter a quantity and
6 99-660 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts $12.80 Enter a quantity and
7 WF3 "Will Fit" Tank Gasket ONLY $8.87 Enter a quantity and
8 200E4 Quality Bemis "Will Fit" Round Toilet Seat - White $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White $67.91 Enter a quantity and
9 "Will Fit" Toilet Bolt Caps (2) - White (view toilet bowl bolt caps in more colors) $2.99 Enter a quantity and

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Frequently Asked Questions

Q. "How can I find the model number of my Gerber toilet?"
A. Look inside your tank. Always exercise caution when removing the tank lid, as it is fragile and can be easily broken if stepped on or dropped. Look inside the tank starting with the back wall - for non-pressure assist models, the model number will be painted just above the waterline (example below left). For pressure assist tanks, the number will be closer to the top of the tank (example below right). Please note that due to safety concerns with pressure assist toilets, we choose not to offer parts for these models.

How to find your Gerber toilet model number

Have questions about toilet parts or toilet repair?

Toilet Repair Information & FAQs

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