Under $100 buys a 3 GPM replacement pump with a 55 psi switch, or a 4 to 5 GPM pump from a newer importer. The cheapest pumps don’t all publish a warranty or a maximum current draw, so check each product page before you buy.
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Best RV Water Pumps Under $100: Under 4 GPM
- Seaflo 42 Series 3.0 GPM 55 psi#1 of 3Full review
A strong-value 3 GPM replacement: 55 psi, a bypass and a 4-year warranty for about half the price of the name-brand equivalent.
Amazon $59.32$59.323 GPM55 psi7 A - Seaflo 33 Series 3.0 GPM 45 psi#2 of 3Full review
The cheapest way to a 3 GPM pump with a 4-year warranty. Buy it for a travel trailer when a firm 55 psi shower isn’t a priority.
Amazon $52.99$52.993 GPM45 psi- - PowerMax 3.0 GPM 55 psi RV Pump#3 of 3Full review
A cheaper stand-in for the Shurflo 4008 with the same flow, pressure and bypass. Seaflo’s 42 Series is cheaper still with a longer warranty.
Amazon $74$743 GPM55 psi-
Best RV Water Pumps Under $100: 4 GPM and up
- Wassermann 4WDP5 5.0 GPM 55 psi#1 of 2Full review
The cheapest high-flow pump here by a wide margin. Buy it as a budget upgrade if you can live without a published warranty.
Amazon $63.16$63.165 GPM55 psi- - Wassermann 3WDP4 4.0 GPM 45 psi#2 of 2Full review
A low-cost 4 GPM pump for a trailer owner who wants more flow than the stock pump. Its sibling 5 GPM model costs only a few dollars more.
Amazon $59.99$59.994 GPM45 psi-
