The Aquapac Waterproof Insulin Pump Case is designed to protect your pump during daily life and water-based activities — including showering, bathing, and IPX6 protection from water [water sprayed by jets at all angles].
Use is recommended only for very brief immersion — no deeper than 50 cm and no longer than 15 se conds
The Insulin Pump Case range is now available in three sizes to fit all insulin pumps:
Please check the Size Guide before ordering.
These waterproof cases allow you to bathe, shower, and paddle in water.
Each case comes with a soft, adjustable belt for secure and comfortable wear.
Important: Please review the medical guidance and flow rate testing notes below before purchasing.
The insulin pump cases are not FDA approved for medical use in the USA. However customers can buy the Radio Microphone cases instead which are exactly the same case also available from this site.

• The Small case is the most popular and fits the majority of pumps.
• The new Mini case fits Medtronic pumps 640, 670, and 780 , as well as T:slim and Ypsomed pumps.
• The Medium case fits the largest insulin pumps on the market.
Waterproof Protection (IPX6 Rated) Offers protection against rain, splashing, and very brief immersion (up to 50 cm depth for 15 seconds).
• Mini: For Medtronic 640 / 670 / 780 and T:slim
• Small: Best-selling size that fits most pumps
• Medium: For larger or more advanced pump models
Wire-Compatible TC Clamp Seals around tubing or wires up to 3.5 mm in diameter using Aquapac’s TC (Tube Clamp) sealing system.
Use Your Pump Through the Case All buttons and screens remain accessible through the case’s clear, flexible TPU material.
Floats in Water: Floats with air inside the case, reducing the risk of accidental loss.
Secure Wearing Options Supplied with a soft, adjustable waist belt. Can also be used with your own belt if preferred.
Durable Construction Made from UV-resistant, biodegradable TPU with high-frequency welded seams for long-lasting use.
Product Name: Waterproof Insulin Pump Case Product Codes:
• Mini: S148
• Small: S158
• Medium: S548
Waterproof Rating: IPX6 – Protected from strong water jets and brief, shallow submersion
• Biodegradable TPU
• TC Clamp made from ABS with foam seal Temperature Range: -20°C to 50°C Manufactured in: United Kingdom
• Waterproof Insulin Pump Case (Mini, Small, or Medium)
• Adjustable belt (121cm / 47" Fully Extended)
• Instructions for use and maintenance
Ideal For:
• Bathing, showering, and paddling
• Light swimming (front or back, surface only)
• Humid environments or rainy conditions
• Everyday use by children or adults
Medical Disclaimer – Please Read Carefully
Aquapac commissioned a study by Imperial College London to assess the suitability of these cases with insulin pumps. The research found that:
• At low flow rates (e.g. 2U/hr), some cases may restrict insulin delivery
• At higher flow rates (e.g. 10U/hr), performance remained unaffected
Aquapac cannot guarantee the case will maintain 100% flow integrity for all pump models or users.
Use of this case with an insulin pump is at the discretion of the user. Aquapac strongly recommends:
• Consulting your doctor or diabetes consultant before use
• Monitoring blood glucose levels regularly during use
• Avoiding extended or deep submersion in water
Summary of results: At 2U/hr:
• 100% flow rate (no case): 0.0131g insulin delivered
• In Aquapac 150: range of 42%–81% flow rate
• In Aquapac 550: 92% flow rate
At 10U/hr:
• Flow rates remained close to or at 100% in both cases
Care Guidance
• When not in use, leave the TC clamp open to prevent distortion of the foam seal
• Avoid prolonged immersion
• Ensure the tubing sits correctly in the clamp channel before closing
Built for Life. Trusted Worldwide.
Aquapac has been protecting specialist gear since 1983. Our cases are relied upon by parents, outdoor users, and professionals in over 60 countries.

Fits All Major Insulin Pumps Three sizes to ensure proper fit and reliable performance:
• Most insulin pump brands and models
• Tubing or wires up to 3.5 mm in diameter
• Check the Size Guide to ensure best fit
The supplied belt measures 121 cm (47") when fully extended. It can be shortened by trimming to size and heat-sealing the cut end to prevent fraying.