PN#032110 SKU#13088 Seat Valve. Height & Lumbar Control Seat Valve, End and Side Ported with Removable Chrome Knob, (2) 1/8″ FPT Ports. Port Size: (2) 1/8″ FPT. Primary Vehicle Application: Various. Valves control air ride truck seats and lumbar supports. Available in push/pull and paddle type configurations. Spring-loaded, three-way function. Electro-pneumatic combination valve designed to operate air seats using an electric air compressor. Designed to replace valves on seats by major manufacturers such as Bostrom, National and Sears. Note: Valve is universal and suitable for a variety of applications.