SUITABLE FOR LIQUIDS AND AIR AND UNALTERABLE TO NORMAL CHEMICAL AGENTS, INTERNAL DIAMETER OF 12MM AND 1/2" CONNECTION.COMPOSED OF: NO.1 HOSE ASSEMBLY PLIERS, NO.1 Y-CONNECTOR, NO.2 FITTINGS: 1/2", NO.2 FITTINGS: 3/8", NO.1 TAP WITH HOSE CONNECTION, NO.1 TAP WITH 1/2" CONNECTION, NO.1 1/2" ARTICULATED CONNECTION, NO.6 NOZZLES (2PCS WITH Ø6MM HOLE, 2PCS WITH Ø9.5MM HOLE AND 2PCS WITH Ø12.5MM HOLE), NO.3 90° NOZZLES, NO.3 90° NOZZLES WITH HOLES, NO.6 PIPES L=160MM COMPOSED OF 7 SEGMENTS EACH.