The addition of the Retract-A-Tip to the Gas Vapor Probe (GVP) system allows for a more versatile field kit for monitoring or sampling hydrocarbon spill sites, underground storage tanks and pipelines. The Retract-A-Tip can be used multiple times without damage. When the sampling depth is reached, the drive tube is pulled up to expose the inlet holes for sampling. The point can then be driven deeper, reopened, and another sample taken. 

Includes GVP manual, GVP dedicated tip with umbrella (10), Retract-ATip, removal jack, external drive adapter 19 mm (3/4") I.D., 7620 cm (250') roll fluoropolymer tube 4.7 mm (3/16"), GVP 15.8 mm (5/8") tip drive end, slide hammer adapter 19 mm (3/4") O.D., SDS Max drill adapter, SDS Max 38.1 mm (1 1/2") carbide bit, 914.4 mm (3') GVP 15.8 mm (5/8") extension (4), hand pump, slide hammer, 15.8 x 914.4 mm (5/8" x 3') heavy duty extendable tile probe base, 15.8 x 914.4 mm (5/8" x 3') heavy duty tile probe extension (3), deluxe carrying case, GVP instruction CD video. 

Heavy Duty Kit also includes Carbide drill bit, 50.8 mm (2") lead with hard surface tip, 50.8 x 914.4 mm (2" x 36") extension (2), 50.8 mm (2") carbide tip, SDS Max drill adapter, 63.5 mm (2 1/2") Wild Bore SDS Max.