3 x Omnipure K2540 BB in-line water filters – Free postage Australia wide. K2540 BB if you require a 1/4 inch female thread to screw your own fittings into. Most widely used as a external inline fridge filter or as a polisher for reverse osmosis systems. Reduces Dirt & Sediment, Chemicals, Chlorine, bad tastes & Odours. Rated at 5 microns. Maximum service life is 1500 Gal, Maximum pressure 125 psi, Dimensions 285mm overall x 50mm. Excellent reduction rates for quality drinking water and ice. Made in the USA. NSF approved. The best inline water filters in the world, pure and simple.