4.0-Gallon Reverse Osmosis RO Water Storage Tank by Tankro

Sold by Express Water

Up to 14% Off

Product Details


Advantages of a metal diaphragm type expansion tank • Metal shell has greater pressure resistance than plastic. • Lower molecular porosity of metal eliminates air pressure loss. • Diaphragm-type design assure stable water outflow. Features: • Stainless steel connection built for Reverse Osmosis water storage tank; pump tank & thermal tank applications. • Brass cap with internal O-ring guarantees no air loss from air-vent. • Smooth internal air vent cap prevents diaphragm damaged. • High-grade butyl diaphragm, post-cure procedure insures a tasteless and odorless water chamber • Maximum Working Pressure: 100PSI • All Tanks are Pre-charged at 7 PSI • Connecter NPT 1/4" The dimension is 9.5" diameter and 15" height. White color, Steel tank with approved Food grade bladder inside. 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. The water inlet is 1/4" MPT with stainless steel thread. It can be re-pressurize using an air pump through the air valve. The tank is 4 gallon tank and holds about 3.2 gallons of water. Best pressure tank on the market, designed to last 5+ years Pre-charge at about 5-7 psi Standard bladder, food grade, no rubber smell, no plastic smell, stainless steel connection on top 4 gallons outside volume, holds 3. 2 gallons of water

The Fine Print


  • This item is sold through the Groupon Store Express Water , operated by Express Water, LLC. .
  • The merchant is solely responsible to purchasers for the fulfillment, delivery, care, quality, and pricing information of the advertised goods and services.
  • This product is new.
  • Product eligible for free returns within 30 days.
  • Offer is not eligible for promo codes, but is eligible for Groupon Bucks.
  • Shipping and handling charges for the order will be Free.
  • U.S. shipments only.
  • Does not ship to Alaska or Hawaii.
  • Does not ship to PO boxes.
  • Orders are typically delivered in 5-10 business days.
Offer is not eligible for our promo codes or other discounts.

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