MityVac - Wet and Dry Penis Vacuum Pump System

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  • 90 Day Returns

  • Lifetime Warranty

The MityVac HydroVac penis pump kit can be used with warm water or dry to increase penis girth and length by expanding and building new collagen and tissue for a longer, thicker penis with harder erections.

  • Increase penis girth and length

  • Improve erection quality

  • Correct erectile dysfuntion



After 20 years of research and development with the veterans of penis enlargement, MOS is proud to announce the MityVac HydroVac Penis Pump system.


If you are looking to improve your erection quality, enlarge your penis or do full package vacuum penis pumping with your penis and testicles, the MityVac HydroVac is a superb system. The MityVac offers a wide range of diameters and lengths to accommodate your pumping goals by air vacuum pumping or warm water pumping to maximize erection quality and penis gains.

For many decades, penis pumping has been the most effective way to improve erection quality while enlarging the girth and length of the penis at the same time. Short term penis pumping achieves immediate penis enlargement that lasts for hours. Many porn actors pump before shooting a scene to perform with maximum erection quality and penis size. Long term use of penis pumping results in permanent improved erection quality and increased penis size gains.

The MityVac system is designed so you can begin with a starter pump set, and once you out-grow your starter system, upgrade to a new larger cylinder to save money and keep building penis size. 

We include one 8" long SiliCap2 to eliminate fluid retention, four SiliRing cock rings to maintain girth,  a hydro water trap for wet pumping, a MitySleev pelvic silicone comfort pad (not included with 2.5", and larger pumps), coconut oil for lube, and a discrete carry case.

We custom handcraft each MityVac in house, please allow one-two business days for production. 

Note: The Titan Gel and SiliSleevs in the pictures and videos are no longer included with kit. 


  • MityVac flanged pump cylinder of choice

  • MityVac vacuum pump gun with swivel gauge

  • Hydro water trap for hydro pumping with water

  • Quick connect vacuum tubes and valves

  • MitySleev pump cylinder pelvic comfort sleeve (Not included with 2.5", 2.75" and larger pumps)

  • SiliRing cock ring set to keep penis expanded after pumping

  • 8" SiliCap2 to eliminate fluid retention

  • Coconut oil packet for pumping

  • Discrete hardshell carry case


  • Nine hydro vacuum cylinder diameter sizes to choose, ranging from 1.5" (38mm) up to 3.5 (89mm)" 
  • Internal lengths available in 9.25" (254mm) and 12" (305mm) long with 4mm thick walls.
  • Full flanged lab grade acrylic vacuum cylinders for comfort.
  • Precise measurements in inches and millimeters to track penis gains.
  • High quality quick connect fittings on the cylinder and vac-lines maintain pressure and quickly change from hydro to air pumping without the vacuum pump needing to be attached to the vacuum cylinder.
  • Hydro water trap for hydro pumping with warm water.
  • High quality vacuum pump and precise vacuum gauge. Vacuum range: 0-28.9 Hg, with a vacuum release trigger for safety.
  • One 8" SiliCap2 glans cap to prevent swelling of the glans
  • Four constriction rings to keep the penis expanded during and after pumping 
  • Soft TPR silicone removable pelvic cylinder seal for extra seal and comfort (Not included with 2.5" and larger pumps)
  • Discrete Carry Case 


The MityVac is available in nine different diameter cylinders with the option of a 9.25" (23.5cm) or 12" (30cm) inside usable length.

The MityVac inside diameter sizes available are as follows

1.5" (3.8cm)

1.75″ (4.5cm)

2″ (5cm)

2.125" (5.4cm)

2.25" (5.7cm)

2.5" (6.35cm)

2.75" (7cm)

3" (7.6cm)

3.25" (8.3cm)

3.5" (8.9cm)

How to measure your penis SHAFT for pump cylinder sizing

Use a piece of string or a flexible tailors measuring tape. Get your penis erect.Wrap the string or measuring tape around the thickest part of your ERECT shaft or base (whatever is thickest).For most people, the thickest part of the penis is at the base of the penis by the pelvic bone. If your upper shaft is thicker than your base, measure the thickest part of your shaft.

If you use a string, mark where the string overlaps itself with a pen so that you can see the pen mark on both ends of the string.Lay the string on a flat surface and measure the distance between the two pen marks with a ruler.

What size pump cylinder to order?

Ordering a pump cylinder that is much wider than the girth of your penis is not beneficial and will actually cause you to prolong the growth process and grow a deformed penis over time. Stick with the recommendations we provide, this is all data collected from pump users over the past 20 years.


Order a MityVac pump cylinder that is .25" larger in diameter than the thickest part of your erect penis girth. This will allow your penis to expand in girth and length at the same time. 

If your erect penis shaft base girth or cock and balls circumference measurement is:

Under 3.5", order a 1.5" diameter pump cylinder.

4” (9cm) to 4.75” (12cm) order a 1.75″ (4.5cm) diameter pump cylinder

5″ (12cm) to 5.7" (14.5cm)” order a 2″ (5cm) diameter pump cylinder

5.75 (14.5cm) " to 5.9" (15cm) order a 2.125″ (5cm) diameter pump cylinder

6.1″ (15.5cm) to 6.75 (18cm)” order a 2.25” (5.7cm) diameter pump cylinder

7″ (18cm) to 7.5” (20cm) order a 2.5” (6.35cm) diameter pump cylinder

7.75” (20cm) to 8.25” (21cm) order a 2.75” (7cm) diameter pump cylinder

8.5” (22cm) order a 3” (7.6cm) diameter pump cylinder

2.75” (7cm), 3” (7.6cm), 3.25" (8.2cm) and 3.5" (8.9cm) diameter pump cylinders are commonly used for full package pumping (cock and balls). To get this measurement, measure the circumference around your erect cock and balls with a string or flexible tailors measuring tape.


The rule of thumb is to order a MityVac pump cylinder in a diameter that is closest to the thickest part of your natural erect penis girth. The idea is to pack your naturally erect penis in the cylinder and pump so your penis only extends in length since. The penis will not expand much in girth due to restricting width expansion. 

 If your measurement is not listed above – Please Contact Us at 


We offer 9.25" (23.5cm) and 12" (30cm) long MityVac pump cylinders. You want to choose a pump length that is long enough to grow in but not too long where you lose vacuum due to the void in the pump.

For a natural erect penis length between 3" to 7.5" long, order the 9.25" (23.5cm) long MityVac.
For a natural erect penis length between 7.75" to  10.5" long, order the 12" (30cm) long MityVac.
For a natural erect penis length over 10.5" long, contact us for a custom length.


The MityVac ships for free in a plain box with no indication inside or outside of the packaging describing what it is or what it is used for. The MityVac has no branding on it as well. The shipping label ship from address is PPC Corp. 

Your Credit Card or Pay-Pal account will show that you made a purchase of a "LM-1001" from "PPC".


USA DOMESTIC SHIPPING: The typical free shipping time in the US is 2-3 days with USPS once your order leaves our shop.

INTERNATIONAL DHL & UPS SHIPPING: The typical shipping time for DHL & UPS shipping internationally is 3 days once your order leaves our shop and can be tracked all the way to your door.

INTERNATIONAL USPS SHIPPING: If you select the cheapest USPS shipping option, the typical shipping time for USPS shipping internationally is 15 days once your order leaves our shop. Also please note with USPS, once your order leaves the USA, the tracking information can not be traced.


If you are unsatisfied with your purchase, you have 90 days to return your MityVac for a full refund. All items must be unused and included in the same condition when received.

If there is a manufacture defect, we will promptly replace your part or product at our expense, shipping included.

Introducing the MITYVAC




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