With the Multiport Top and its two additional connection ports, you can connect your HEATKILLER Tube series reservoir to your loop in a number of new ways. For example, you can route the backfeed of your loop to the top of the reservoir and additionally connect a fillport. A standpipe in matching length and the required mounting material are part of the delivery scope. This top is compatible to all HEATKILLER Tube series reservoirs. Technical Data: Measurements (L x W x H): 70 x 70 x 20 mm Material: POM (ACETAL) Color: schwarz Ports: 2x G1/4" Included: 1x HEATKILLER Tube - MultiPort Top 1x Standpipe Acryl 75 mm Mounting material Model: 100039