Thru-bolts on both ends

and they are designed to provide immediate water flow even when the temperature drops below freezing

Ships fully assembled

and fire-protection applications

18 Gauge CuVerro antimicrobial copper 15' x 22' x 5

Ultratech Filter Pad Liner, Ultra-X-Tex(R), For Use With Mfr. No. 6540, 30 in Length, 24 in Width - 6550 Frame Finish-Bright Polished Thru-bolts on both endsFoldable for easy storage and transport, this pad features a replaceable liner that allows clean water to pass through while it captures oil, grease, and fuel leaks and spills. The foam sidewalls help contain stormwater during excessive periods of rainfall.