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🌡️ Stay cool, stay safe — the Rheem SP8346 has your back!
The Rheem SP8346 Temperature and Pressure Relief Valve is a compact, stainless steel safety device designed to protect your water heater by releasing excess heat and pressure at 210°F and 150 psi. Featuring a universal 3/4-inch NPT inlet and outlet, it ensures easy installation and reliable performance, especially when paired with Rheem water heaters. Trusted by professionals and homeowners alike, this valve combines durability with precision engineering to keep your system running safely and efficiently.
| ASIN | B009AX2ULU |
| Batteries Required? | No |
| Best Sellers Rank | #257,600 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #638 in Water Heater Replacement Parts #46,068 in Parts & Accessories |
| Brand | Rheem |
| Customer Reviews | 4.5 4.5 out of 5 stars (361) |
| Date First Available | September 14, 2012 |
| Exterior Finish | Stainless Steel |
| Global Trade Identification Number | 00020352436364 |
| Inlet Connection Size | 0.75 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Item Package Quantity | 1 |
| Item Weight | 7.8 ounces |
| Item dimensions L x W x H | 1 x 1.2 x 0.2 inches |
| Item model number | SP8346 |
| Manufacturer | Rheem |
| Material | Metal |
| Maximum Operating Pressure | 150 Pound per Square Inch |
| Number of Ports | 2 |
| Outlet Connection Size | 0.75 Inches |
| Outlet Connection Type | NPT |
| Part Number | SP8346 |
| Product Dimensions | 1 x 1.2 x 0.2 inches |
| Size | Small |
| Thickness | 1 Inches |
| UPC | 020352436364 |
G**E
Well priced quality unit
Works great! Easy swap out. Quality built and have had no problems with it since installation.
C**N
Five Stars for Working Perfect
Worked perfectly for my Rheem hot water tank.
A**R
good price and quality.
Good quality.
H**1
Doesn't fit
I measured, thought it was going to fit , 1/2 inch too short , I got a label to print and will return, it is a good product
A**R
OEM Fit
Exact product replacement, does not leak like the 11-year old one replaced. Relatively easy installation during a larger effort to replace the magnesium anode rod. This part was as close to trivial as you can get. EDIT: If a new valve leaks, check your water pressure, as you may have a failed pressure reducing valve in the system. It’s a good idea to check line pressure at least twice a year anyway. It’s a very good idea to do that if you are in a hard water area.
E**R
Perfect fit
Was exactly what I needed
F**D
Replaced my L100XL
The L100XL is supposedly discontinued due to lead content. I had a hard time finding the replacement that the manufacturer suggested. Either the shipping time was way too long, or I thought the price was too high. So I looked for an alternative and found this. The dimensions appeared to match up, so I took a gamble. When I did the replacement, it turns out that the body on this is 1/2" shorter than the body on the L100XL. Luckily it didn't make a difference for the neck clearing my tank. Though the piping I needed to connect it to - for the drain was a bit of a pain to get right because it was 1/2" shorter than I expected. Luckily I was able to make it work. I did some testing and it worked great compared to the old one which was leaking badly at the valve. I was happy with this purchase because I got it at what I felt like was a very reasonable price, as well a fast shipping.
D**.
These leak far too often
Poor product. Bought in April 2025, started leaking in November 2025.
B**T
C’est un bon produit mais j’ai besoin de la couleur bleu les couleurs le petit cap il y a une couleur et ça te dit la pression que tu as de besoin si on installe pas le bon boum est-ce que vous pouvez m’envoyer la bleu svp merci c’est celle là que j’ai de besoin
M**N
Parfait
L**W
Replaced a similar holder when the tensioner finally wore out. Love the tensioner as it gives the option for one hand usage. Very sturdy.
A**U
really good
Trustpilot
1 week ago
1 month ago