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ISC - D4 Descender

Our Price
Manufacturer's suggested retail price
20+ in stock.


The ISC D4 descender is designed for work/rescue usage with solid mechanism giving precise control across all ranges of speed.

Suitable for loads of 240kg on 10.5-11.5mm rope and featuring several safety features including an auto lock that kicks in if the handle is pulled open too fully or when the handle is released entirely.

Conformity: EN12841, NFPA 1983 and ANSI Z359

Product Data

Rope CompatibilityMaximum Working LoadMaterialsWeightConformity
Rope Compatibility
10.5 - 11.5 mm
Maximum Working Load
240 kg
Body: Aluminium Alloy
Cam: Stainless Steel
EN 12841, NFPA 1983, ANSI Z359


Please contact the shop by telephone or e-mail before returning goods. You have 14 days from the date you receive the order to cancel if you wish.

Then just pop them in the post with a note with your name and order number. Once the goods are received we'll issue your refund within 24 hours. Processing from your bank may take up to 5 days.

We cannot accept returns of used goods or custom products (such as rope cut to length) unless there is a fault with the item.

UK Shipping

UK shipping is FREE for orders over £35 and are shipped using Royal Mail, which takes 2-3 days.

Orders of over £150 are shipped with a new working day courier service FREE of charge.

If your order is under the £150 limit you can upgrade to a better service for a small fee. Please see options at checkout.

Orders for in stock products, placed before 2.30pm on a weekday, are shipped the same day.

International Shipping

Orders for in stock product, placed before 2.30pm UK time, on a weekday are shipped the same day.

Our international shipping prices are very low and are calculated on the cart page.

We will not charge UK VAT on international orders. You may be charged import duty or sales tax by customs in the destination country. Please check the tax rules in the destination country before ordering. If goods are returned due to unpaid customs duties the order will be refunded less any fees incurred.

More information

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