PPS CK - TIGHTENING WRENCHES CASE - Includes tightening wrenches for multiple pipe sizes Available Variants & SKUsAll variants and part numbers for this product are listed below for easy reference and ordering. SKU Description PPS CCHP1650 Pipe Chamfering Tool 16-50MM PPS CCHP63100 Pipe Chamfering Tool 63-100MM PPS CK1632 Spanner Set 16-32MM PPS CK4050 Spanner Set 40-50MM PPS CT1650 Pipe Cutting Tool 16-50MM PPS CT63100 Pipe Cutting Tool 63-100MM PPS CK6380 Spanner Set 63-80MM The Prevost system is a cut-and-assemble aluminum pipe rather than threaded or welded pipe, and these are what your crew needs to make clean, leak-free joints. After cutting each length, the end has to be chamfered and deburred with the chamfering tool so it doesn't nick the O-ring going into the fitting, then a dab of the assembly gel seats the seal, and each fitting is locked down with the correct-size tightening wrench (the 3/4" and 2" keys cover the two pipe sizes on this job, plus a universal wrench). These are one-time tools, not per-fitting, so a single set covers the whole install and stays with you for any future additions.