Hose Thread Backflow Preventer

by EnviroDrip

Product Features

• 3/4" FHT x 3/4" MHT - backflow preventer
• Prevents dirt or fertilizer from re-entering the water supply.
• Install after the faucet or timer.

Product Details

• Shipping Weight: 1.6 ounces (View shipping rates and policies)
• ASIN: B0034YWADE
• Average Customer Review: 2.3 out of 5 stars  See all reviews (3 customer reviews)
• Amazon Best Sellers Rank: #33,204 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • #50 in Patio, Lawn & Garden > Plants & Planting > Watering Equipment > Hoses & Accessories > Drip Systems

Product Description

3/4" FHT x 3/4" MHT - backflow preventer prevents dirt or fertilizer from re-entering the water supply. Install after the faucet or timer. Special Note: During normal operation the backflow preventer will appear to "leak" after the system or timer is turned off. This is normal as the backflow preventer is allowing water to drain from the system without entering the water supply. The amount of water drained will be equal to the water capacity of the drip system.

Customer Reviews

Most Helpful Customer Reviews

3 of 4 people found the following review helpful:

1.0 out of 5 stars Another Tiresome Item - buy 3 cheap to stand in for 1 quality one., July 4, 2011

By 

T. C. English "az-tom" (Phx, AZ USA) - See all my reviews
(REAL NAME)   

This review is from: Hose Thread Backflow Preventer

The good:

- It worked at least two months after the last one failed.
- The heavy duty black ABS plastic is a wonderful recycling product.

Don't waste your hard earned money on these units. One of them is outside as I write, spurting micro-jets of water. One yesterday, two today. Failure, again, is imminent. Spend a little more money and buy a 3/4 inch bronze backflow preventer from a restaurant supply or RV sales location.

If you investigate further you may find these are not designed for 24/7 operation, only intermittent operation. There seems to be some faulty logic in that assumption, but it's a great excuse for unit failure.

5.0 out of 5 stars Backflow preventer, November 7, 2011

By 

Bob - See all my reviews

Amazon Verified Purchase

This review is from: Hose Thread Backflow Preventer

It works. It was cheap and easy to install. It works perfectly. I installed it at the discharge port of a small utility pump. I would buy again.

1 of 4 people found the following review helpful:

1.0 out of 5 stars NOT A CHECK VALVE!, June 7, 2011

By 

rhartz - See all my reviews

Amazon Verified Purchase

This review is from: Hose Thread Backflow Preventer

I bought this item without careful attention to the description. I wanted it to prevent the hose drain-back on a small water pump. While the water is prevented from flowing back into the pump, it just dumps it outside the pump - which doesn't help me at all. The item costs less than the shipping, so returning it would cost me even more. It doesn't "prevent" backflow; it just prevents it from backflowing into the source. Beware of misleading product names.