PE pipe fittings 1.Holddown Support for irrigation. 2.End Line, available at different size. 3.Use in Irrigation Works. PE pipe fittingsUse these drip fittings to connect pieces of tubing together. The Easy Loc Fittings are the most common and easiest drip irrigation fittings to use. The compression drip fittings are the lowest costing fittings, hold extremely well, but are a little more ...