SEAFLO 2 Gallon Pre-Pressurized Accumulator Expansion Tank – Reduces Pump Cycling, Smooth Water Flow, 87 PSI, 3/4" MNPT, Compact Design for RV, Marine, Boat & Off-Grid Systems – 4-Year Warranty

I bought this accumulator to try and stop the pulsations of the water pump in my RV. They have smaller versions of this that are about a quart in size. I chose to go with the 2 gallon one. it is obviously larger and takes a little more room in a cabinet but so worth it. Installation was not to difficult, except for working in a cabinet. You will need to buy some pipe fittings to install it also. it worked so good, no more pulsations in the water, just like home. They pump does run longer when the pressure in the tank drops to the cut in point however it does not run as often and turn off and on rapidly with lower water flows. I highly recommend one of these for your RV

Quick delivery and very good quality, works great!

My tankless hot water unit wouldn’t work properly due to low water flow, they require a minimal flow rate and my water pump in my RV couldn’t provide it by itself, I ordered and installed this Accumulator tank and it keeps my water pressure at a steady flow rate and my tankless water heater unit is now functioning properly as it should!

Great product. Super happy. The thread is 3/4" MNPT as advertised. Many reviews mention troubles with pipe thread, but a standard 3/4" FNPT to PEX fitting from a local big box worked just fine for me. I've used the much smaller model from their competitor in much more space-restricted camper build. That helped with pump cycling, but this tank changes the game. Flush the toilet and wash your hands - the pump doesn't even kick on. It's only during really prolonged use that the pump is needed. Not to mention the added consistency in pressure. We don't have much use for both sinks and the shower at the same time - but we could if we wanted to now.

Meets form, fit and function. Hope for Longevity .

This pressure tank is used in a weekend cabin. I have a 100 gallon fresh water tank as a reservoir to pump water to a shower and 2 faucets. The tank has a large enough capacity that the water pump doesn’t run continuously. In fact, one or two uses of water at the faucet are possible without the pump on. Not only is that easier on the pump, reducing wear on the diaphragm, it is also quiet. My previous softball size tank had so little capacity, the pump turned on with each use of the faucet. This caused the rv style water pump to wear out after just a year of use.

Great product manufacture has a very long history of producing a manufacturing pressure tanks for boiler systems recirculation systems, water systems, etc. does take a lot of pressure off of your well pump especially if you add them in separate locations. It’s like little mini water towers in the sense.

I have had this on my water heater for about six months now and it has been doing its job. I am thankful for getting an affordable option and something I can trust.