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Red Lion RL6AH - 6-Gallon Horizontal Pre-Charged Pressure Tank with Pump Mounting Bracket and Thermoplastic Stand for Well Pumps, 3/4-Inch MNPT System Connection, Almond, 604629

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Availability: In Stock.
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Arrives Wednesday, Mar 25
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Style: 6 Gallon Horizontal


Features

  • APPLICATION: Designed to work with a well pump system to maintain water pressure when the pump is not running; certified for safe, clean, drinking water NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372 approved
  • BUILT TO LAST: Heavy-duty 20-gauge steel tank; 304 stainless steel water connection with patented leak safe technology; high performance variable geometry butyl rubber diaphragm; propylene liner
  • SET-UP: Tank is pre-charged to 20 PSI for transportation; air pressure in the tank must be topped off with a bicycle pump to 2 PSI below the pressure switch cut-in setting
  • PUMP MOUNTING BRACKET AND STAND INCLUDED: mounting bracket allows pump to be installed onto tank; stand lifts tank off of the floor preventing condensation from forming and staining of the floor
  • SPECIFICATIONS: 6 gallon horizontal tank; 1.9 gallon drawdown @ 30/50 PSI; handles 2 water fixtures running simultaneously; 3/4" MNPT straight system connection, NSF/ANSI tested/certified by WQA

Description

A pressure tank is an essential part of a pressurized water system that provides water pressure. The tank stores water between the diaphragm and the liner. The pressure tank reduces the number of times the pump needs to start significantly increasing the lifespan of your well pump. The tension of the diaphragm maintains the water pressure within the system ensuring proper operation of all water appliances such as a dishwasher and washing machine and provides a robust flow of water for showering. No maintenance is needed. A properly set-up pump and tank will work as a team to deliver water pressure to your home and provide many years of dependable service. The Red Lion RL6AH tank is a 6-gallon horizontal tank with a drawdown of 1.9 gallons at 30/50 PSI. It is designed to handle 1 water fixture at a time. The RL6AH is equipped with a 3/4-inch MNPT threaded straight system connection. The RL6AH is made of heavy-duty 20-gauge cold rolled carbon steel with a 304 stainless steel connector. It has a triple grade almond paint finish. The liner material is FDA grade polypropylene. The unit is rated at a maximum working temperature of 194 degrees F and a maximum working pressure of 150 PSI. Initial set-up: The tank is pre-charged to 20 PSI in order to transport this pump safely and must be filled with air to 2 PSI below the cut-in setting of the pressure switch. For example, a 30/50 system needs 28 PSI of air in the tank. A 40/60 system needs 38 PSI. To fill the pump with air, use a standard bicycle pump and monitor the pressure using a pressure gauge (not included).This unit is equipped with a space saving thermoplastic universal pump mounting plate that allows a jet pump to be attached directly to the tank.This system is NSF/ANSI/CAN 61/CAN 372 tested and certified by WQA.

Brand: Red Lion


Color: Almond


Material: Butyl Rubber, Steel, Thermoplastic


Style: 6 Gallon Horizontal


Product Dimensions: 16.3"L x 11.4"W x 12.6"H


Power Source: Electric


Item Weight: 9.9 Pounds


Manufacturer: Franklin Electric Canada, Inc.


UPC:


Brand: ‎Red Lion


Color: ‎Almond


Material: ‎Butyl Rubber, Steel, Thermoplastic


Style: ‎6 Gallon Horizontal


Product Dimensions: ‎16.3"L x 11.4"W x 12.6"H


Power Source: ‎Electric


Item Weight: ‎9.9 Pounds


Manufacturer: ‎Franklin Electric Canada, Inc.


UPC: ‎010121014022


Part Number: ‎604629


Item Weight: ‎9.9 pounds


Item model number: ‎604629


Size: ‎6 Gallons


Item Package Quantity: ‎1


Included Components: ‎Installation manual, Mounting bracket for jet pump, Tank with stand


Batteries Required?: ‎No


Date First Available: August 9, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Mar 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • High-quality pressure tank, easy to install and works perfectly
Style: 20 Gallon Vertical
I installed the Red Lion RL20A 20-Gallon Vertical Pre-Charged Pressure Tank a few weeks ago, and it has been performing excellently. Installation was straightforward — the tank is pre-charged and ready to go, so all I had to do was connect it to my existing plumbing system. The vertical design is compact and fits nicely in my utility area without taking up too much space. Since installation, the tank has maintained consistent water pressure throughout my home. It easily absorbs pump cycling and keeps the flow steady, which makes showers, faucets, and irrigation systems feel smooth and reliable. I’ve noticed fewer pump cycles, which should help extend the life of my pump and save energy over time. The steel construction feels solid and durable, and the paint finish looks professional — it’s clearly built to last. One thing I particularly like is the pre-charged bladder system. It eliminates the hassle of manually pressurizing the tank, and the internal bladder appears sturdy and well-sealed. I haven’t had any leaks or pressure drops, and the tank maintains its pressure even after multiple days of non-use. For anyone looking to upgrade or replace a small to mid-sized pressure tank, this Red Lion RL20A is a reliable and efficient choice. I would recommend pairing it with a compatible pump and checking the air charge before installation for optimal performance. Overall, it’s a high-quality, dependable tank that meets expectations and seems built to last. ... show more
Reviewed in the United States on February 22, 2026 by Zach Zach

  • Worked well easy to instal
Style: 14 Gallon Vertical
Worked well for our needs
Reviewed in the United States on March 3, 2026 by Dotty C

  • Great Compact pressure tank
Style: 14 Gallon Vertical
Fantastic small pressure tank for my limited confined space. Provides relief for my small well pump and delivers smooth flowing water to my cabin. Can hardly notice any pressure fluctuation anymore! Great value. Suitable for a small cabin or house. Mine is a 700 square foot. One bath, small kitchen, small laundry and it functions great! ... show more
Reviewed in the United States on November 6, 2025 by Capt Carl

  • arrived fast and good condition
Style: 34 Gallon Vertical
It seemed that most negative reviews were a result of ship damage. No particular brand escaped the problem. I was relieved when mine arrived in mint condition. I hope I get a reasonable life-span from this brand. After purchasing this, I found that similar size tanks of other brands can be found at a couple of the big lumber chains for about $100.00 less This tank looks quality--- I hope so. ... show more
Reviewed in the United States on December 19, 2024 by Scott P.

  • A+
Style: 34 Gallon Vertical
Great product, arrived in perfect condition. I like that it sits a little higher than my last tank. My last tank was higher and thinner. I installed all new T and fittings and ran new pex to the holding tank. A+
Reviewed in the United States on February 4, 2026 by John Foley

  • Easy to install
Style: 20 Gallon Vertical
Works very good, easy to install.
Reviewed in the United States on February 16, 2026 by Angel M.

  • Works great
Style: 20 Gallon Vertical
Installed with no problems
Reviewed in the United States on January 27, 2026 by glenna

  • Plastic base
Style: 20 Gallon Vertical
The plastic base was broken. Should have used metal or better material other than plastic
Reviewed in the United States on February 2, 2026 by Marie

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