WIX 46561 Air Filter Fill Rite DEF Positive shut off between each Size:WSS2505235 22kg Positive shut off between each spray position Jam proof toggle mechanism prevents binding or accidental bending of plunger * Precision fit and hardened plunger prevents lubricant bypass and resists scoring for longer life * Rugged cast iron pump head for strength and durability * Follower rod locks into follower to force prime * Exclusive 'flip over' follower allows a superior seal for either cartridge or bulk loading applications WIX HD Air Filters feature premium filtration media with skip a pleat media stabilization (where applicable) and pleat stabilization beads Genuine WIX 46561 air filter — official WIX part