Get current pricing for Bel, BEL8-S-300-7M Bel Composites Model Bel8-s-300-7m Ro Housings. These 8-inch, 7-long Vessels Are Rated At 300 Psi. Side Ports Are 1.5 Victaulic And Located In P . Product Category: Process Equipment, Sub Category: Reverse Osmosis Equipment: