how much time it's good until need replacement ?

Mine lasted 18 months. Considering it was a replacement for a different tank that lasted 5 years, I consider that pretty poor.

How much pressure is in it when received?

It comes with the proper pressure. Over time, the pressure will get too low. Go on YouTube to For instructions on how to re-pressurize.

What's the recommended pressure to keep on the bladder? 8psi?

Pre-charge with 5-7 psi of air pressure. When tank is full it may reach 45 to 50 psi of pressure depending on your RO system.

PA-E RO-122 small Reverse Osmosis Water storage pressure tank

PA-E RO-122 small Reverse Osmosis Water storage pressure tank

Product ID: 347958740

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Details

Brand
PA-E
Special Feature
NSF certified
Product Dimensions
22.9L x 22.9W
Package Information
Can
Installation Type
Under Sink

💧2.2-gallon capacity

🔧Pre-pressurized, maintenance-free

🛡️NSF/ANSI Standard 58 certified

Description

💧 Elevate your hydration game with pressure-perfect purity!

SPACE SAVVY DESIGN - Compact stainless steel tank fits perfectly under sinks, in RVs, or campers without sacrificing performance.
PLUG PLAY PRESSURE - Pre-charged internal bladder design means zero maintenance and instant water flow.
CERTIFIED CLEAN SAFE - NSF/ANSI Standard 58 certification guarantees your water meets top health standards.
LEAK PROOF RELIABILITY - Sealed brass air valve and o-ring cap provide a durable, leak-free water storage solution.
CONSISTENT HYDRATION ON DEMAND - 2.2-gallon capacity ensures steady, pressurized filtered water whenever you need it.

The PA-E RO-122 is a 2.2-gallon stainless steel reverse osmosis water storage tank designed for under-sink RO systems, RVs, and compact spaces. Featuring a pre-pressurized internal bladder, NSF/ANSI Standard 58 certification, and a leak-proof design, it delivers consistent, safe, and contaminant-free filtered water on demand with zero maintenance.

Specifications

ASIN	B00A7GFVI8
Brand	PA-E
Brand Name	PA-E
Capacity	2.2 Gallons
Container Type	Can
Country Of Origin	USA
Included Components	Storage Tank, Tank Holding Bracket
Installation Type	Under Sink
Item Dimensions L x W x H	22.9L x 22.9W x 35.6H Centimeters
Manufacturer	PAE
Material	Metal
Material Type	Metal
Model Name	RO 122
Model Number	RO-122
Other Special Features of the Product	NSF certified
Product Dimensions	22.9L x 22.9W x 35.6H Centimeters
Purification Method	Reverse Osmosis
Special Feature	NSF certified
Supported Water TDS Level Maximum (PPM)	500
UPC	670541140116 661799343824
Whats in the box?	Storage Tank, Tank Holding Bracket

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