if this tank comes recharged at 20 psi can I add air too it if needed? the watts I have now is recharged at 40 but is bad now

Yes air can be added. There is a valve stem at the bottom of the tank. As I recall, I brought the pressure up to 40 lbs. I checked out their website to see what I use for my well pump switch that runs 40 to 60 lbs.

What is the connection size?

The fitting connection is 3/4" NPT threads.

This tank will be used on an rv, do any of the tank suppliers offer either a wall mount or cradle type floor mount for the heavier tanks? thanks, ray

Hi Ray, I purchased the same expansion tank, and mounted it on my wall. The bracket I used was called Hydro Claw, by storm king. Its not cheap at about $35 to $40, but it is a well made, heavy duty bracket. Very nice looking install. Even my plumber buddies are very impressed! Highly recomend. Good luck, and stay safe. Jeff H.

Rv parks pressure varies. have my incoming pressure set at 40psi. but when using the pump, it comes on at 35psi, & off at 60psi. is this a fit 4 us?

May be helpful, but the pump run pressure range of 15psi is probably normal

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Watts Regulator PLT-5 Potable Water Expansion Tank

Product ID: 93884573

Details

Brand
Watts
Capacity
2.1 gallons
Color
Gray
Material
Stainless
Product Dimensions
8"L x 8"W x

💧2.1 gal capacity

🛠️3/4" MNPT easy mount

🛡️High pressure durability

₨4179

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Description

💧 Keep your system pressure flawless—because every drop counts!

EFFORTLESS INSTALLATION - 3/4" MNPT connection mounts directly to supply piping—no fuss, no downtime.
OPTIMAL 2 1 GALLON VOLUME - Perfectly sized to manage thermal expansion and protect your system from pressure spikes.
RUGGED CARBON STEEL BUILD - Epoxy-coated for corrosion resistance and long-lasting performance in any environment.
TRUSTED LEGACY SINCE 1874 - From a brand that’s been innovating water solutions for over a century—join the millions who rely on Watts.
PRE PRESSURIZED FOR PEAK EFFICIENCY - Absorbs excess water volume to prevent overpressure and extend your heating system’s lifespan.

The Watts Regulator PLT-5 Potable Water Expansion Tank is a 2.1-gallon, pre-pressurized carbon steel tank with an epoxy finish, designed to control thermal expansion in closed-loop hydronic heating systems. Featuring a 3/4" MNPT connection for easy mounting, it ensures system pressure stays below relief valve settings, enhancing longevity and efficiency. Trusted since 1874, Watts delivers durable, lead-free water solutions for both commercial and residential use.

Specifications

ASIN	B002JEODQW
Best Sellers Rank	#158,185 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #184 in Water Heaters
Brand Name	Watts
Capacity	2.1 gallons
Color	Gray
Customer Reviews	4.7 4.7 out of 5 stars (444)
Global Trade Identification Number	00098268095739
Included Components	Expansion Tank
Item Dimensions L x W x H	8"L x 8"W x 11"H
Item Type Name	Expansion Tank
Item Weight	0.01 Ounces
Manufacturer	WATTS WATER TECHNOLOGIES
Manufacturer Part Number	GIDDS-1030401
Material Type	Stainless Steel
Model Number	PLT-5
Shape	Cylindrical
UPC	098268095739
Unit Count	1.0 Count

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₨4179

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Seychelles.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

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Received my product in pristine condition. Great service overall.

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