A 3 GPM pump is the standard fit for a travel trailer, camper or small boat, and most swap in for the pump the rig came with. These cost about $53 to $166. Look for a 55 psi shut-off for a firm shower and an internal bypass to cut the on-off cycling at a slow tap.
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.
Full ranking 11
- Seaflo 42 Series 3.0 GPM 55 psi#1 of 11Full 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 11Full 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 11Full 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- - Flojet Triplex R3526144D 2.9 GPM#4 of 11Full review
A long-running OEM triplex pump for trailers and campers. It costs more than importer pumps with a longer warranty.
Amazon $103.59$103.592.9 GPM50 psi- - Johnson Pump Aqua Jet WPS 3.5#5 of 11Full review
A marine pressure pump with a 3-year warranty, for boats where 41 psi is plenty. RV owners after a firmer shower should look at 55 psi pumps.
Amazon $137.49$137.493.5 GPM41 psi- - Lippert Flow Max 3.0 GPM 12V#6 of 11Full review
A dealer-friendly 3 GPM replacement from a big RV parts maker. Seaflo’s 42 Series gives the same flow and more pressure for less.
Amazon $105.95$105.953 GPM50 psi9.5 A - Shurflo Revolution 4008 3.0 GPM#7 of 11Full review
The standard replacement pump for travel trailers and campers, with a 55 psi switch and a bypass for smoother flow. Buy it to replace a worn 4008 like for like.
Amazon $127.05$127.053 GPM55 psi7.5 A - Jabsco Par-Max 3 25 psi#8 of 11Full review
A low-pressure pump for boats and gravity-style systems where gentle 25 psi flow is wanted. Most RVs want a 45 to 55 psi pump instead.
Amazon $121.48$121.483 GPM25 psi5.2 A - Shurflo Revolution 4028 2.3 GPM#9 of 11Full review
A low-draw 2.3 GPM pump for a small camper or van with one fixture in use at a time. Larger rigs get more water per dollar from a 3 GPM pump.
Amazon $120.10$120.102.3 GPM50 psi5 A - Jabsco Par-Max HD3#10 of 11Full review
A heavy-duty 3 GPM marine pump with a 3-year warranty. It costs more than lighter pumps with higher pressure.
Amazon $166.06$166.063 GPM40 psi8 A - Shurflo Aqua King II Junior 2.0#11 of 11Full review
A small, low-draw pump for a single galley tap on a boat or van. Its 2 GPM at 30 psi is too little for an RV with a shower.
Amazon $114.80$114.802 GPM30 psi3.5 A
