Taco 400-4 1/8-Inch-NPT Float Air Hy-Vent

works as it should. Had to change ex tank and auto fill valve and in a short time air was out of system

It does what it is supposed to, have used this same model for a few years now without issue.

Easy installation

I installed this at the junction point of the feed manifold from my boiler to all the zones in my house, a direct replacement of a failed automatic bleed valve. This Taco 400-4 works like a charm. Upon refilling of the system, it immediately started hissing, which is good. Overall it took about 20 minutes to purge all the air out of the system. Very impressed. The material, construction and heft of this Taco 400-4 is quite good.

Perfect replacement the old one that was bad.

still have air in my system and not sure how long it takes to help get it out.

I think there is only one type of this, so how could I give any less than 5 stars :-) But Im happy with the purchase, fits as expected and works perfectly.

Gave to plumber. Worked fine.

Works as expected and price beats local plumbing outlets

The material and color are very well chosen for a serious and elegant presentation. Delivery time was good, adequate packaging to protect the item. Thank you.