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 PLT-5 Potable Water Expansion Tank 2.1 Gallon 3/4" Male Connection

Watts PLT-5 Potable Water Expansion Tank 2.1 Gallon 3/4" Male Connection

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

🔧high pressure durability

🛠️3/4" MNPT easy mount

$290.74

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Keep your system cool, calm, and pressure-perfect.

PRESSURE SMART DESIGN - Pre-pressurized to prevent overpressure and extend heater life.
EFFORTLESS INSTALLATION - Direct supply piping mount with standard 3/4" MNPT connection.
OPTIMAL 2 1 GALLON VOLUME - Precisely controls thermal expansion to protect your system.
ROBUST CARBON STEEL BUILD - Epoxy finish and durable membrane for long-lasting reliability.
TRUSTED LEGACY SINCE 1874 - Watts ensures water safety and system efficiency with proven innovation.

The Watts Regulator PLT-5 is a 2.1-gallon potable water expansion tank crafted from high-quality carbon steel with an epoxy finish. Designed for closed loop hydronic heating systems, it controls thermal expansion and maintains system pressure below relief valve thresholds. Featuring a 3/4" MNPT connection for easy installation, this pre-pressurized tank enhances system longevity and efficiency, backed by Watts' 150-year legacy of water technology innovation.

Specifications

ASIN	B002JEODQW
Best Sellers Rank	#221,892 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #213 in Water Heaters
Brand Name	Watts
Capacity	2.1 gallons
Color	Gray
Customer Reviews	4.7 4.7 out of 5 stars (450)
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	0.27 g
Manufacturer	WATTS WATER TECHNOLOGIES
Manufacturer Part Number	GIDDS-1030401
Material Type	Stainless Steel
Model Number	PLT-5
Number of Items	1
Number of Packs	1
Shape	Cylindrical
UPC	098268095739
Unit Count	1 Count

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