High quality poly supply line for bringing water from a source to the plants, for inserting sprayers, emitters, or transfer barbs. This is a little more expensive than the drip tube you might find at Home Depot or conventional sources but it's more than worth the price difference: much harder to kink, lasts longer, and you can use our simple Perma-Loc fittings. Rated for up to 50 psi constant pressure. Use with 1/2" Perma-Loc, compression, or insert fittings. Low density PE.