Lined Open-Chamber SPTA modification to our original fully lined SPT design Originally designed for V2000 owners but also great with the SeriousKit Milker. Fully lined for the length of the shaft, but with an open chamber at the cap end. Lube before use with a water based gel transparent when wet. Can be used with the SeriousKit milker or V2000 (V2000 owners will need one of our connection hoses). Sizing: Sizes 40mm or 50mm (30mm by special order) The size refers to the

Open Chamber SPTs:

and information about vacuum pumps for the USA and Canada

Additional lower stages complete with liner

There is some variation in the external diameter of our tubes from one model to the next and although the harness material is stretchy so it is possible to use each harness with a variety of tubes

Additional lower sections are £22 each

Choose an internal diameter for the constriction (30mm or 35mm constriction for 40mm tubes / 40mm or 45mm constriction for 50mm tubes)

45mm or 50mm: Choose an internal diameter that will accommodate your erect diameter

The SPT is bi-polar which means it can be used on its own and does not require another electrode to complete the circuit

If searching for used pumps on Ebay use the search terms “GAST” and “DAA”  The New 2020 Milker will accommodate up to 4  suction devices at the same time - including our range of vacuum suits

The original SPT – and still the most popular

This Bi Polar vacuum cylinder has an ingenious design that focuses E-stim sensation on the head of the penis

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