Can I connect 2 tanks together for more water storage?

I put two 3.2 gal tanks together with a tee last month. It works fantastic!!

Anyone know if this will work for Whirlpool RO systems? The support rep told me any RO tank would work. Anyone use this for another system?

I don't think it matters what RO system you have. If it has the option for a reserve tank and the fitting works, then it should fill with water.

What is the pressure rating for the tank. Can it handle 60 psi?

Remember that the RO system water valve regulates the "internal" pressure, so the tank is not going to see the actual water line pressure. Most valves operate at 65%, so if your water line pressure is 60 psi, the pressure at the tank generally won't be more than 40 PSI. In most setups you'd need the pressure on the water line to be around 92 PSI to get 60 PSI on the tank.

What is the diameter of the 5.5 gal tank?

Thanks for the question! The diameter of the tank is 12" x 16" (H) Kindest, iSpring Team

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iSpring T32M Pressurized Water Storage Tank with Ball Valve for Reverse Osmosis RO Systems, 4 Gallon, 1/4" Tank Valve Included, White

iSpring T32M Pressurized Water Storage Tank with Ball Valve for Reverse Osmosis RO Systems, 4 Gallon, 1/4" Tank Valve Included, White

Product ID: 256972202

Details

Brand
iSpring
Capacity
3.2 Gallons
Material
Stainless
Product dimensions
27.9L x 27.9W
Special features
NSF certified

💧3.2 gal capacity

🔩Stainless steel 1/4" valve

🛡️NSF/ANSI certified safety

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Description

💧 Elevate your hydration game with pure, pressurized perfection!

VERSATILE INSTALLATION - Works efficiently in both vertical and horizontal positions to fit your space.
CERTIFIED SAFETY PURITY - NSF/ANSI tested butyl diaphragm ensures tasteless, odorless, and safe drinking water.
RELIABLE 3 2 GALLON CAPACITY - Perfectly sized for small households and on-demand RO water supply.
DURABLE STAINLESS STEEL VALVE - Corrosion-resistant 1/4" NPT valve thread for leak-proof, long-lasting performance.
PRE PRESSURIZED FOR INSTANT FLOW - 7-10 psi air bladder pressure delivers water instantly when you need it.

The iSpring T32M is a 3.2-gallon pressurized water storage tank designed for reverse osmosis systems, featuring a food-grade butyl diaphragm certified by NSF/ANSI standards for safe, tasteless water. Its stainless steel 1/4" valve ensures durability and leak resistance, while the pre-pressurized tank (7-10 psi) guarantees instant water flow. Compact and rust-resistant, it’s ideal for small households seeking reliable, on-demand purified water.

Specifications

ASIN	B00439MYYE
Best Sellers Rank	#50,046 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #134 in Under-Sink Water Filters
Brand	iSpring
Brand Name	iSpring
Capacity	3.2 gallons
Container Type	Dispenser
Country of Origin	USA
Customer Reviews	4.7 out of 5 stars 5,241 Reviews
Global Trade Identification Number	00662425023684
Included Components	tank
Included components	tank
Installation Type	Under Sink
Item Dimensions L x W x H	27.9L x 27.9W x 35.6H centimeters
Item Type Name	with Ball Valve for Reverse Osmosis RO Systems
Item Weight	8 Pounds
LowerTemperature Range	40 Degrees Fahrenheit
Manufacturer	iSpring Water Systems
Material	Stainless Steel Metal
Material Type	Stainless Steel Metal
Model Name	iST1
Model Number	FT32M
Other Special Features of the Product	NSF certified
Part Number	T32M
Power Source	Water Pressure
Product dimensions	27.9L x 27.9W x 35.6H centimeters
Purification Method	Reverse Osmosis
Smart Home Compatibility	Not Smart Home Compatible
Special features	NSF certified
Supported Water TDS Level Maximum (PPM)	10
UPC	662425023684

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$305.58

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

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