Viper Series Toilet Repair Parts
by Gerber

Viper toilets by Gerber are popular for their water efficiency and sleek design. Repair leaks as soon as possible with our quality Gerber replacement parts. From flush valves and fill valves to flappers and trip levers, we've got everything you need to fix your Viper toilet.
Gerber Viper two-piece toilet - tank numbers 28-590, 28-592, 28-594, and 28-595Two-Piece
Tanks #28-590, 28-592, 28-594, & 28-595
Gerber Viper VP series toilet - tank numbers VP-28-590, VP-28-592, and VP-28-595VP Series
Tanks #VP-28-590, VP-28-592, & VP-28-595
Gerber Viper VP series toilet - tank number VP-28-594VP Series
Tank #VP-28-594
Gerber Viper high efficiency toilet - tank number HE-28-570High Efficiency
Tank #HE-28-570
Gerber Viper high efficiency toilet - tank number HE-28-590High Efficiency
Tank #HE-28-590
Gerber Viper high efficiency toilet - tank numbers HE-28-592, HE-28-594, and HE-28-595High Efficiency
Tanks #HE-28-592, HE-28-594, & HE-28-595
Gerber Viper WaterSense toilet - tank number WS-28-590WaterSense
Tank #WS-28-590
Gerber Viper WaterSense toilet - tank number WS-28-591WaterSense
Tank #WS-28-591
Gerber Viper WaterSense toilet - tank numbers WS-28-592, WS-28-594, and WS-28-595WaterSense
Tanks #WS-28-592, WS-28-594, & WS-28-595

Replacement Parts for Gerber Viper Toilets
Two-Piece Model - Tanks # 28-590, 28-592, 28-594, & 28-595

Parts diagram for Gerber Viper toilets - tank numbers 28-590, 28-592, 28-594, and 28-595
Item # Part # Description Price & Quantity
1 99-300 Fill Valve $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 99-648 2" Flush Valve with 8-1/2" overflow length - 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 99-001 Front Mount Left Side Tank Lever - Chrome $27.12
99-001-WH Front Mount Left Side Tank Lever - White $26.09 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 (view more color options) $60.56
1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White (view more color options) $67.91 Enter a quantity and
10 "Will Fit" Toilet Bowl Bolt Caps (2) - White (view more color options) $2.99 Enter a quantity and

Replacement Parts for Gerber Viper VP Toilets
Two-Piece Model - Tanks # VP-28-590, VP-28-592, & VP-28-595

Parts diagram for Gerber Viper VP series toilets - tank numbers VP-28-590, VP-28-592, and VP-28-595
Item # Part # Description Price & Quantity
1 99-300 Fill Valve $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 3" Flush Valve with 6-3/4" overflow length - includes flapper and chain $20.99 Enter a quantity and
5 99-788 Flapper with Chain $10.37 Enter a quantity and
6 99-001 Front Mount Toilet Tank Lever - Chrome $27.12 Enter a quantity and
99-001-WH Front Mount Left Side Tank Lever - White $26.09 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 (view more color options) $67.91 Enter a quantity and
10 "Will Fit" Toilet Bowl Bolt Caps (2) - White (view more color options) $2.99 Enter a quantity and

Replacement Parts for Gerber Viper VP Toilets
Two-Piece Model - Tank # VP-28-594

Parts diagram for Gerber Viper VP series toilets - tank number VP-28-594
Item # Part # Description Price & Quantity
1 99-300 Fill Valve $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 99-002 Flush Valve - includes flapper and chain Discontinued
GA-712002 3" Flush Valve with 7-5/8" overflow length - includes flapper and chain $26.09 Enter a quantity and
5 99-788 Flapper with Chain $10.37 Enter a quantity and
6 99-001 Front Mount Toilet Tank Lever - Chrome $27.12 Enter a quantity and
99-001-WH Front Mount Left Side Tank Lever - White $26.09 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 (view more color options) $67.91 Enter a quantity and
10 "Will Fit" Toilet Bowl Bolt Caps (2) - White (view more color options) $2.99 Enter a quantity and

Replacement Parts for Gerber Viper High Efficiency Toilets
Two-Piece Model - Tank # HE-28-570

Parts diagram for Gerber Viper high efficiency tolets - tank number HE-28-570
Item # Part # Description Price & Quantity
1 99-300 Fill Valve $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 99-838 3" Flush Valve with 2" extended base - 5-3/4" overflow length - (7-3/4" from tank bottom to top of overflow) - includes flapper and chain $21.32 Enter a quantity and
5 99-788 Flapper with Chain $10.37 Enter a quantity and
6 99-001 Front Mount Toilet Tank Lever - Chrome $27.12 Enter a quantity and
99-001-WH Front Mount Left Side Tank Lever - White $26.09 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 (view more color options) $67.91 Enter a quantity and
10 "Will Fit" Toilet Bowl Bolt Caps (2) - White (view more color options) $2.99 Enter a quantity and

Replacement Parts for Gerber Viper High Efficiency Toilets
Two-Piece Model - Tank # HE-28-590

Parts diagram for Gerber Viper high efficiency toilets - tank number HE-28-590
Item # Part # Description Price & Quantity
1 99-300 Fill Valve $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 99-002 3" Flush Valve - includes flapper and chain Discontinued
GA-712002 3" Flush Valve with 7-5/8" overflow length - includes flapper and chain $26.09 Enter a quantity and
5 99-788 Flapper with Chain $10.37 Enter a quantity and
6 99-001 Front Mount Toilet Tank Lever - Chrome $27.12 Enter a quantity and
99-001-WH Front Mount Left Side Tank Lever - White $26.09 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 (view more color options) $67.91 Enter a quantity and
10 "Will Fit" Toilet Bowl Bolt Caps (2) - White (view more color options) $2.99 Enter a quantity and

Replacement Parts for Gerber Viper High Efficiency Toilets
Two-Piece Model - Tanks # HE-28-592, HE-28-594, & HE-28-595

Parts diagram for Gerber Viper high efficiency toilets - tank numbers HE-28-592, HE-28-594, and HE-28-595
Item # Part # Description Price & Quantity
1 99-300 Fill Valve $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 99-793 3" Flush Valve with 5-7/8" overflow length - includes flapper and chain $20.78 Enter a quantity and
5 99-788 Flapper with Chain $10.37 Enter a quantity and
6 99-001 Front Mount Toilet Tank Lever - Chrome $27.12 Enter a quantity and
99-001-WH Front Mount Left Side Tank Lever - White $26.09 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 (view more color options) $67.91 Enter a quantity and
10 "Will Fit" Toilet Bowl Bolt Caps (2) - White (view more color options) $2.99 Enter a quantity and

Replacement Parts for Gerber Viper WaterSense Toilets
Two Piece Model - Tank # WS-28-590

Parts diagram for Gerber Viper WaterSense toilets - tank number WS-28-590
Item # Part # Description Price & Quantity
1 99-300 Fill Valve $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 99-002 Flush Valve - includes flapper and chain Discontinued
GA-712002 3" Flush Valve with 7-5/8" overflow length - includes flapper and chain $26.09 Enter a quantity and
5 99-788 Flapper with Chain $10.37 Enter a quantity and
6 99-001 Front Mount Toilet Tank Lever - Chrome $27.12 Enter a quantity and
99-001-WH Front Mount Left Side Tank Lever - White $26.09 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 (view more color options) $67.91 Enter a quantity and
10 "Will Fit" Toilet Bowl Bolt Caps (2) - White (view more color options) $2.99 Enter a quantity and

Replacement Parts for Gerber Viper WaterSense Toilets
Two-Piece Model - Tank # WS-28-591

Parts diagram for Gerber Viper WaterSense toilets - tank number WS-28-591
Item # Part # Description Price & Quantity
1 GA711023 Fill Valve $23.99 Enter a quantity and
2 GA711006 Flush Valve - includes flapper and chain $22.88 Enter a quantity and
3 GA715014 Flapper with Chain $17.77 Enter a quantity and
4 99-001 Front Mount Left Side Tank Lever - Chrome $27.12
99-001-WH Front Mount Left Side Tank Lever - White $26.09 Enter a quantity and
5 GA700460 Tank Assembly Kit - includes tank gasket, bolts, washers, and nuts $11.91 Enter a quantity and
6 1200E4 Quality Bemis "Will Fit" Elongated Toilet Seat - White (view more color options) $67.91 Enter a quantity and
7 "Will Fit" Toilet Bowl Bolt Caps (2) - White (view more color options) $2.99 Enter a quantity and

Replacement Parts for Gerber Viper WaterSense Toilets
Two-Piece Model - Tanks # WS-28-592, WS-28-594, & WS-28-595

Parts diagram for Gerber Viper WaterSense toilets - tank numbers WS-28-592, WS-28-594, and WS-28-595
Item # Part # Description Price & Quantity
1 99-300 Fill Valve $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 99-793 Flush Valve - includes flapper and chain $20.78 Enter a quantity and
5 99-788 Flapper with Chain $10.37 Enter a quantity and
6 99-001 Front Mount Toilet Tank Lever - Chrome $27.12 Enter a quantity and
99-001-WH Front Mount Left Side Tank Lever - White $26.09 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 (view more color options) $67.91 Enter a quantity and
10 "Will Fit" Toilet Bowl Bolt Caps (2) - White (view more color options) $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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