Draper Expert quality, block or combustion leak tester for determining if CO² is present in a vehicle's cooling system. CO² in the cooling system can indicate issues such as a head gasket leak, cracked block or a warped head.

Simple to operate by adding blue detector fluid to the tester and placing it onto the radiator. Air is drawn through the liquid which will change colour to yellow if CO² is present. Can be used in conjunction with a cone adaptor. Supplied with detector fluid.

• Suction rubber bulb
• Upper and lower inspection chambers
• Rubber cone
• Brass quick connect adaptor
• 250ml test fluid screw top bottle
• 250ml empty screw top bottle

This item will be delivered directly by our supplier. Lead times are shown on the product and trolley pages and are always advertised in working days (Monday to Friday).

• If your order contains items stocked by us and items that come direct from the supplier, your order will be automatically split and processed accordingly.
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• Most of our suppliers can deliver to any UK address. Delivery to remote or offshore postcodes may take a little longer than the advertised lead time. If the supplier cannot deliver to your postcode or we believe your order may take longer, we will try to tell you beforehand.
• Items that come direct from a supplier will be delivered by the courier chosen by the supplier. Where possible, suppliers will update you with delivery information. This may be by email, phone call or text message.
• Items delivered direct from suppliers cannot be returned through a store. You would need to return these items direct to the supplier, unused and in their original packaging, at your expense. You can arrange for most items to be collected by contacting our Customer Services team. A fee of £9* will be taken off your refund. There is no charge for faulty items being collected. *For big and bulky items, additional charges may apply.
• Please note, you cannot return bespoke or made-to-measure items unless they are faulty.