Manufactured from 304 non magnetic highly polished stainless 100% tig welded size:13″ (33cm) overall length including top cap and bottom and bottom stub pipes& nbsp;Top mounted stainless machined cap All engines expel coolant when it gets hot with a recovery tank in the system the expelled fluid is drawn back in when the motor cools down Two 6mm (1/4″) outside diameter pipes emerge from the bottom of the tank one feeding the tank from the radiator the other passing to the top of the tank to let air in and out. Suitable for fitment to vehicles without a radiator expansion tank or as a replacement for an existing version – ideal if you are building a cooling system from scratch or to replace the standard plastic header tank Also increase overall coolant capacity – often required by tuned engines Supplied complete with fitting hardware & instructions <span id=”sceditor-end-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span><span id=”sceditor-start-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span>This tank is beautifully made from mirror-finish stainless steel to enhance under bonnet appearance<br>