2pcs NPT1 PVC Bulkhead Fitting, 1 Inch Plastic Water Tank Connector Threaded Thru-Bulk Pipe Fittings for Rain Barrels, Aquariums, Bucket Hose Adapter, Ponds, Pools

These are worth the money, they seal well and easy to install. Just drill a hole and put in and tighten nut but don't over tighten. Made well.

Used these to plumb together two 300 gallon IBC totes into my water change/water mixing station for my reef tanks. Solid so far and no leaks.

I bought these to upgrade our above ground pool fittings and they worked out great . Way better than the ones that come with the pool .

Good quality BUT the outside nut is LEFT HAND THREAD !!! So you can't connect 1&1/4" pipe to the outside of bung connector, can only use i side of 1". I can not understand why they use LEFT HAND THREADS, instead of the standard right hand threads, this is the reason for 3 stars.

This is a great product I would recommend this to everyone.

Good product

As advertised. No leaks. Just works.

Despite what the product description clearly says, these are not 1" NPT thread -- they are clearly stamped DN25 which is a metric (25mm) fitting. They are similar but not equivalent, and are both a slightly different nominal size (25mm vs 1") and use a different thread pitch (55 vs 60 degrees). They will thread together (loosely) and might seal in the smaller sizes with enough teflon tape and pipe dope if you aren't relying on them to hold pressure. You probably won't get anything bigger than 1/2" to seal. Junk.

As described