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⭐ HAPPY HOLIDAYS! ⭐

Great Plains Industries U.S.A. will be closed Wednesday, December 24th, Thursday, December 25th, Friday, December 26th, and Thursday, January 1st, 2026 to enjoy the holiday season.

⭐ HAPPY HOLIDAYS! ⭐

Great Plains Industries U.S.A. will be closed Wednesday, December 24th, Thursday, December 25th, Friday, December 26th, and Thursday, January 1st, 2026 to enjoy the holiday season.

SEE DP-20 EXPLODED PARTS VIEW

Shop for replacement parts using the exploded view diagram below

DP-20 Parts & Accessories

GPI's DP-20 hand pump parts and accessories such as replacement nozzles, inlet fitting kits, and handle kits help keep your lever-action diaphragm pump delivering 20 gallons per 100 strokes.

Original price $30.99 - Original price $30.99
Original price
$30.99
$30.99 - $30.99
Current price $30.99

DP-20 Inlet Fitting Kit

2+ in stock

Original price $30.99 - Original price $30.99
Original price
$30.99
$30.99 - $30.99
Current price $30.99
Original price $35.99 - Original price $35.99
Original price
$35.99
$35.99 - $35.99
Current price $35.99

DP-20 Diaphragm Kit

2+ in stock

Replacement diaphragm parts for DP-20 hand pumps

Original price $35.99 - Original price $35.99
Original price
$35.99
$35.99 - $35.99
Current price $35.99
Original price $12.99 - Original price $12.99
Original price
$12.99
$12.99 - $12.99
Current price $12.99

DP-20 Lock Nut

2+ in stock

Original price $12.99 - Original price $12.99
Original price
$12.99
$12.99 - $12.99
Current price $12.99
Original price $14.99 - Original price $14.99
Original price
$14.99
$14.99 - $14.99
Current price $14.99

DP-20 Handle Hardware Kit

2+ in stock

Replacement handle hardware for DP-20 hand pumps

Original price $14.99 - Original price $14.99
Original price
$14.99
$14.99 - $14.99
Current price $14.99
Original price $26.99 - Original price $26.99
Original price
$26.99
$26.99 - $26.99
Current price $26.99

DP-20 Check Valve and Gasket Kit

2+ in stock

Replacement check valves and gaskets for DP-20 hand pumps

Original price $26.99 - Original price $26.99
Original price
$26.99
$26.99 - $26.99
Current price $26.99
Original price $19.99 - Original price $19.99
Original price
$19.99
$19.99 - $19.99
Current price $19.99

DP-20 Anti-Siphon Valve

2+ in stock

Replacement anti-siphon valve for DP-20 hand pumps

Original price $19.99 - Original price $19.99
Original price
$19.99
$19.99 - $19.99
Current price $19.99
Original price $30.99 - Original price $30.99
Original price
$30.99
$30.99 - $30.99
Current price $30.99

DP-20 Handle

2+ in stock

Original price $30.99 - Original price $30.99
Original price
$30.99
$30.99 - $30.99
Current price $30.99
Original price $12.99 - Original price $12.99
Original price
$12.99
$12.99 - $12.99
Current price $12.99

DP-20 Unleaded Nozzle

2+ in stock

Nozzle material is carbon fiber reinforced nylon.

Original price $12.99 - Original price $12.99
Original price
$12.99
$12.99 - $12.99
Current price $12.99
Original price $28.99 - Original price $28.99
Original price
$28.99
$28.99 - $28.99
Current price $28.99

1-inch NPT, Adjustable Composite Suction Pipe

2+ in stock

GPI Adjustable suction pipes provide the best seal technology on the market. Adjusts from 15 to 40 inches to fit most standard tank sizes. The soli...

View full details
Original price $28.99 - Original price $28.99
Original price
$28.99
$28.99 - $28.99
Current price $28.99
Original price $46.00
Original price $46.00 - Original price $46.00
Original price $46.00
Current price $24.99
$24.99 - $24.99
Current price $24.99

3/4-inch x 5-ft 6-inch UL Listed Fuel Hose with Static Wire

In stock

GPI's 3/4 in.NPT x 5-ft 6-inch (1.7m) UL Listed fuel hose assembly with static wire for use with AC or DC electric pumps, and hand pumps.

Original price $46.00
Original price $46.00 - Original price $46.00
Original price $46.00
Current price $24.99
$24.99 - $24.99
Current price $24.99
Save $21.01 Save $0.00