Backflow Preventer Insulated Pouch (5F) - Pressure Vacuum Breaker Cover - Winter Water Well Pump and Sprinkler Valve Insulation - Protects From Severe Snow and Intense Sun

A year ago, our sprinkler system backflow valve was not properly protected during our winter freeze, and it burst. This year, I looked for an insulated cover and picked this one. We really only get one or two bad freezes here in southeast Texas, so I got it before the freezes came. To be honest, it didn't get quite as cold this year as last, but we still had some temps in the 20s. I drained the system and covered the valve with this product; we had no problems in the end. In April I stored the cover and turned our system back on with no trouble.At least for our relatively mild winter, this product performance perfectly. Recommended if your situation is similar.

Great for protection when winter hits.

Started using this after a cheaper brand failed and froze up my pipes. We had a few -8 nights after and no issues. Great value for the money.

I used this cover for the irrigation valves out near the back of my shed. In the winter, the cold gets rough here and I’ve had to deal with frozen lines before, so I thought this might help. It went on easy, just opened the flap and wrapped it around the top of the valve and pipe, then pulled the velcro shut. It stayed on alright, even through some windy nights. I did use the ties it came with, just to make sure it wouldn't blow away.It held up fine through snow and even when the sun came out strong the next week, it didn’t seem to fade or get brittle. I haven’t had any ice issues yet, which is a good sign, though the weather hasn’t been as bad as last year so far. It seems thicker than I expected, kind of padded in a way. Doesn’t look great sitting out there but it does the job.

Fits very nice over 3/4 inch backflow valve--I'm using it more for just a cover as water valving is right at front of house and wanted to kinda camouflage the valve --seems well made so should last awhile in the hot Phoenix sun I hope

Works great for my sprinkler system winterizing.

Great Products and just as described.

I recently bought this for protection against intermittent below freezing temps at my house. Outdoor plumbing it a thing in the Southwest states of the USA. But sometimes we have bouts of cold that require insulating things to protect them from cold. This perfectly fit my 3/4" pipe Pressure Reducing Valve that feeds my house from the water meter outside. I do not know if it would work in extremely cold areas, but it works fine for my needs. It is built well, fairly thick insulation and fabric, as well as good quality "Hook & Loop" fastening strips along the inner edges. Well worth the purchase price.