A2Z Ozone3/4 Inch PVDF Venturi Injector

Venturi installations can be a trick, but never go with recommended size venturi for ozone use. Especially if you need to run the Ozone unit more than 6 feet away. return piping for mine was 1 1/2" and I started with the 1/4" recommended...big mistake. Then got the 3/4" and it helps but still seems I have to choke the pump due to back pressure, so I will get the 1" for the 1 1/2" return plumbing with 3hp Pent-air variable, being set to 660w vice the normal 375w is a bit of a drag. I have 3 Gph output normal and on concentrated it nearly doubles, so more suction the better if super ozone is used.

Beware this is 3/4 inch hose size BUT not hose fittings. They are fine threaded and the company sends you to hardware store to find them

it works

As another reviewer noted, the outside diameter of the threaded ends of this are quite a bit larger than 3/4 inch. With a heat gun and some cussing I was able to get my 3/4 inch inner diameter hose on this, but I don't think this is the right part for this size hose. The old part that I replaced with this had thinner diameter ends which were much easier to use.UPDATE: Using 3/4 ID tubing I could not get a secure connection and it leaks, even with hose clamps and plenty more cussing. I don't think this is the right part to use unless you have adaptors on the end, I suggest either getting something else or finding the adaptors.

Bought this venturi to replace one on our water bottling equipment. The listing does not mention the suction port pipe thread size or type! We typically cut off the hose barb and just use the threads on the suction port which are typically 1/4" npt on the 3/4" Venturi's... This venturi has what seems to be 3/8" compression type threads on the suction port which makes it very difficult to get to 1/4" NPT. I didn't realize it till I had stripped the threads trying to put a 1/4" SS check valve on the suction port :( I give it 2 stars because the listing doesn't included all the basic information i.e. inlet, outlet, and suction port connection type... now I got a worthless hunk of plastic.Here is the one I have to order now for my application: https://www.amazon.com/gp/product/B014JYD48W/ref=pd_sbs_86_5?ie=UTF8&pd_rd_i=B014JYD48W&pd_rd_r=QSPDG4Z1EWR1SKDERCJQ&pd_rd_w=QLsoJ&pd_rd_wg=eAB32&psc=1&refRID=QSPDG4Z1EWR1SKDERCJQSOOOOO if you need 1/4" Male NPT on the suction port dont order this one from A2Z