Altecnic 1/2" x 1/2" 8 Bar Safety Relief Valve (female x female)

Marsoni

M251S

$11.15

Get it in 3 business days with 1 day shipping. Friday, May 29

Altecnic 1/2" x 1/2" 8 Bar Safety Relief Valve (female x female)The Altecnic series 311 and 312 safety relief valves are used in domestic hot water systems to protect the hot water cylinder and in heating systems to protect boiler and other components. The valve is selected for the required set pressure. As the pressure rises, when the discharge pressure is reached the valve opens and discharges to atmosphere, preventing the pressure within the system reaching levels which would be dangerous for the boiler, hot

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Although designed as a shower curtain liner, I ended up using this for a completely different purpose and it worked perfectly. I placed it behind my study window as a projection screen for Halloween videos, and the results were fantastic. The material allowed the projector image to display clearly while still diffusing the light nicely for a great effect from outside. The quality was much better than expected, the material felt durable, and it was easy to position and work with. This product turned out to be incredibly versatile and offered excellent value for the money. If you enjoy creative decorating ideas or seasonal displays, this works brilliantly as an inexpensive projection screen alternative.

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Reviewed in the United States on May 27, 2026

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Jean Paul

Dallas, US

★★★★★ 5

Perfect length and actually stays in place.

Size: 72"W x 75"L (Pack of 1), Color: 1a. Clear

This liner solved a problem I didn’t realize was bothering me until I switched to it. The extra length makes a big difference—no more water sneaking out onto the floor or the curtain riding up while you’re showering. It hangs nicely and gives a cleaner, more finished look compared to standard sizes. The material feels thicker than the cheap liners you usually find, but not overly stiff. It drapes well and doesn’t stick to you while showering, which is a big plus. The magnets at the bottom actually work and help keep it in place against the tub, especially if you have any airflow in the bathroom. Installation was simple and the reinforced holes seem durable enough to last. Overall, it just does what it’s supposed to do without any fuss. For the price, it’s a solid upgrade and something I’d definitely buy again.

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Reviewed in the United States on April 19, 2026

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Mike Murdock

Whiting, US

★★★★★ 4

Well made

Size: 72"W x 72"L (Pack of 1), Color: 1b. Clear-heavy

The magnets hold well. The grommets are sturdy. The plastic is a bit thick and doesn't like to lie flat against the tub so it is constantly brushing you while you shower.

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Reviewed in the United States on May 14, 2026

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Amazon Customer

Dallas, US

★★★★★ 5

Exactly what they say it is.

Size: 72"W x 72"L (Pack of 1), Color: 1b. Clear-heavy

Appears to work exactly as advertised, and quality is very satisfactory, which is always a pleasant surprise on Amazon. Magnets are strong enough, plastic feels pliable and durable. Don't forget the rings aren't included.

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Reviewed in the United States on May 20, 2026

Verified Purchase

gbrock

Dallas, US

★★★★★ 5

Perfect Weight

Size: 72"W x 72"L (Pack of 1), Color: 1a. Clear

Is a perfect liner. It’s not super thick or heavy. Easy to hang.

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Reviewed in the United States on May 26, 2026