15-20 cm Penis Hydro Pump — Hydromax 8 - TRANSPARENT is backordered and will ship as soon as it is back in stock.
The lowest price guaranteed
Found this product cheaper from a competitor at the time of purchase or within 14 days? We'll refund the difference.
- 1Send us the link to the cheaper product.
- 2We'll check availability and eligibility.
- 3We'll refund the difference within 48h.
Conditions
- The product must be NEW and strictly identical (brand, model, size and colour).
- The retailer must be based in France or the EU and operate a professional online shop, excluding marketplaces and resale platforms.
- The product must be in stock and dispatched by the competitor within 7 days.
- The competitor's price must include delivery (VAT-inclusive price compared with VAT-inclusive price).
- The guarantee cannot be combined with a promo code, referral offer or discount already applied.
- Excludes official sale periods, private sales, exceptional clearance events and Black Friday/Cyber Monday.
- Excludes group purchases, B2B orders and professional bundles.
- Limited to one claim per order, within 14 days of delivery.
- Refunds are issued to the original payment method within 48h of approval.
This is the model you need when you exceed 15 cm and standard pumps no longer suffice. The internal diameter is generous — no feeling of lateral compression even when engorgement starts to build. Downside: the cylinder is quite imposing, not the most discreet thing to store in the bathroom.
If you're between 15 and 20 cm when erect and want to take it to the next level — the Hydromax 8 is calibrated for you. It features the same hydro technology as the rest of the range, but with a longer and wider cylinder to accommodate larger sizes without compression.
A cylinder designed for larger sizes
The transparent polycarbonate cylinder measures 25.4 cm long with a maximum circumference of 16.5 cm — or approximately 5.3 cm in internal diameter. This is the model for well-endowed men who don't fit into a standard Hydromax 7. The graduated scale inside allows you to measure your progress in real-time, and the transparent cylinder lets you see everything.
Calibrated hydraulic pressure
The Hydromax bellows generate 35% more power compared to air pumps. In the shower, warm water relaxes tissues and dilates vessels — suction becomes more efficient and more comfortable than when dry. The Superflow valve at the top of the cylinder can be operated with one hand to fill or release pressure instantly.
Shower or bath routines, 15 to 20 min
The routine is simple: warm water, fill, progressive pumping. The silicone comfort seal at the base conforms to the pubic bone without pinching the skin. Bathmate recommends not exceeding 20 minutes per routine. Engorgement after routines is immediate and visible — lasting gains are built over several weeks of regular use, with 3 to 5 routines per week.
| Material | ABS |
| Vibrating | No |
| Stretchable | No |
| Pump type | Hydromax |
| Adjustable | No |
How do I know if this size fits me?
Can I use it outside the shower?
Does the seal at the base irritate the skin?
Dispatch within 24 business hours — plain packaging, fully tracked.
— DELIVERY TIMES
Mainland France: 48–72h (Colissimo). Express 24h: €4.90. Belgium / Switzerland / Luxembourg: 3–5 days.
— RETURNS
14 days after receipt for sealed and unused products. For hygiene reasons, an unsealed sex toy cannot be returned.
