F.L. Hitchman, the manufacturers of the Aquaroll have built up an excellent reputation for quality of products but they also realise the importance of optional extras for their caravan accessories. The 80mm tap allows the caravanner to dispense water straight from the aquaroll into any other container with no hassle and little mess.The 80mm caps are compatible with 29 litre aquarolls manufactured after 1992 and all 40 litre Aquarolls.