They are built with an inner reinforced PVC core

as this will void your warranty

Pressure compensating Softflo aerator 2

20 Gauge 2" x 4" x 6" Chrome Plated

2x2x1-1/2"PRS TEE CP WROT PC611/COPPER PRESSFITTING SUMP BASIN PARTS & ACCESSORIES They are built with anNIBCO Press System fittings are the fastest, easiest way to join copper tubing systems in residential and commercial potable, hot, chilled and process water applications for plumbing and HVAC systems. The press fittings can also be installed underground. The NIBCO Press System is user friendly, quick and easy to install. When properly crimped a unique "N" witness mark is clearly visible. Please refer to NIBCO technical data sheets and catalogs for