2 Tier LAYER Follower Cage - AR Model R The unit is supplied complete with one nipple and drip cup per partition, 0.6mm feed troughs and support frames. The Follower unit is designed as a secondary unit to be connected directly to the 2 Tier Starter, and as such is not supplied with a header tank and float valve per tier. Up to 9 Follower Units can be connected in a row, with the water supply coming from the Starter Units header tanks. CONTACT US FOR PRICING