Check the listing for details. Pressure & Vacuum Tester by CDI Electronics (551-34PV). Condition: New. Listed at 199.99 USD. The PRESSURE VACUUM TESTER (551-34PV) from CDI Electronics is reliable, durable, and high-quality. This boat component does not harm the boat engine but only assists in the smooth and safe operations of the boat. This pressure vacuum tester from CDI Electronics is a combination unit that does both pressure and vacuum testing. To switch functions, simply flip a valve on the side and change it from vacuum to pressure or vice versa. This product helps in checking the technical conditions of the boat engine parts. Pressure vacuum testers are vital tools to monitor and maintain boat conditions to avoid big damages and repair costs. Key Features: Strong, reliable, and high-quality material Constructed for quick and simple use Improves boat engine performance Functional in marine environments Pressure and Vacuum testing Product includes: 551-34HA hose assembly 551-334M 551-334S adapters Product Specifications: Brand: CDI Electronics SKU: 551-34PV UPC: 736983856302 Weight:2.20 LBS Manufacturer Part Number (MPN): 551-34PV Product Dimensions (length x width x height): 10 x 11 x 3.4 inches Fit type: Vehicle Specific Replaces both S34 and V34 testers. Combination unit does both pressure and vacuum testing in one unit. Simply flip a valve on the side and change it from vacuum to pressure. Includes 551- 33HA hose assembly, 551-334M and 551-334S adapters.