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🔥 Stay cool under pressure with Watts ETX-30 – the expansion tank that keeps your system flawless!
The Watts ETX-30 is a 4.5-gallon, carbon steel non-potable water expansion tank designed for closed loop hydronic heating systems. Pre-charged at 12 PSI and featuring a durable expansion membrane, it controls thermal expansion and maintains system pressure below relief valve settings. With a 1/2 inch MNPT connection and a max pressure rating of 60 PSI, it’s built for both residential and commercial use, ensuring long-lasting, trouble-free operation.
| ASIN | B0086DDNEI |
| Batteries required | No |
| Customer Reviews | 4.6 4.6 out of 5 stars (569) |
| Date First Available | 5 May 2013 |
| Included components | Expansion Tank |
| Is assembly required | No |
| Item Weight | 8 Pounds |
| Item diameter | 0.75 Inches |
| Item model number | ETX-30 |
D**E
À été très utile
W***
Perfect Fit and replacement. Purchased the EXT-30 to replace my failed Flextrol expansion tank purchased 12/2020. Apparently the bladder failed, causing my hydronic heating system to increase pressure causing the pressure pop off valve to drip. The old tank was small, 2.1 gallon size. When researching replacements, I accidently ordered the 4.5 gallon. Thankfully it just barely fit. I have three zones and fingers crossed the larger capacity will endure less stress during the repeating thermo cycling. Watts tank is well built, came pre charged at 12 psi. Spun right on 1/2 mnpt connection. Ordered on Monday, delivered Wednesday and 30 minutes later was installed. Pressures have maintained, no leaks, and zero worries. Btw, I called the plumbing supply store where I purchased the Flextrol in 2020, I believe it was less than 100 bucks, wanted a whopping $150.
P**N
Easy to install. Better pricing than from the Big Box store. Good quality.
A**R
Item replaced original. Works great.
K**S
Worked perfectly.
Trustpilot
1 month ago
2 days ago