Spa fitting, pumps, valves and connectors depend on proper sealing, longevity and resistance to chlorine, chloramines or other pool or spa disinfectants including UV, Ozone and Salt Water Systems.
McMasters Koss has supplied pool and spa equipment manufacturers with O-Rings and gaskets for over 20 years and can offer the material needed to meet best performance and budgetary requirements.
From Filters, Valves, and control systems to the newest electronic weatherproof enclosure gaskets, McMasters Koss sales engineering team can assist with pool and spa requirements.
Pool Lighting Systems require waterproof gaskets and seals to meet UL electrical requirements. Standard O-Rings and a variety of custom seals are used to provide a safe environment for underwater electrical systems.
Please contact our Sales Engineering team with any UL or underwater electrical requirements.
ABS/Lexan Plastics Require Compatible Elastomers to avoid chemical attack and crazing. Please contact our Sales Engineering team with any ABS/Lexan Plastic application assistance.
McMasters Koss Bulk Parts Shipment 
McMasters Koss Commercial O-Ring Inventory Hallway 
Customer Specific O-Ring Inventory 
McMasters Koss Bulk Inventory Area 
McMasters Koss Bulk OEM Storage Facility 
McMasters Koss JIT Delivery System 
McMasters Koss Durometer Testing Center 
McMasters Koss Inspection Capabiltiies 
ASTM Specifications for Testing and Compliance 
McMasters Koss Global Shipments 
McMasters Koss Headquarters Complex 
McMasters Koss Oil Seal Environmental Test Chamber 
Custom Molded Rubber Seals 
Fluorocarbon O-Rings and Molded Seals 
Extruded Rubber Gasket 
Custom Molded Rubber Seals 
O-Rings 
McMasters Koss APQP Compliance 
Custom Molded Ball Seals 
Custom Molded Rubber Seals 
Oil Seals 
Custom Molded Rubber Seals 
Custom Molded Rubber Seals 
Extruded Rubber Seals