Tobee® Back Liner SPR65041R55 for Rubber Lined 65QV-SPR Vertical Pump. The Back Liner SPR65041R55 forms a pump caing SPR65092 with impeller SPR65206 where the slurry would flow through them. E-mail: [email protected] | Web: www.tobeepump.com | Web: www.slurrypumpsupply.com | Web: www.tobee.cc | Web: www.hydroman.cn | Web: www.tobee.store