William’s/Niedner’s Tidalwave hoses feature:

A unique lightweight 6” (152 mm) large diameter hose capable of significant water flow at higher pressures, TIDALWAVE 600™ is a 100% polyester double jacket, 300 psi (20.7 bars) service test pressure rated attack, relay and supply hose. Lined with TPU elastomer for flexibility, light weight and compactness, TIDALWAVE 600™ occupies less space than conventional rubber covered LDH. The ENCAP™ treated outer jacket improves durability, reduces water absorption up to 40%, enhances chemical resistance, and adds color options.  Supplied with locking Storz couplings.