The multi-channel heads can be adapted to the following pumps: Hei-Flow Value 01 Hei-Flow Advantage 01 Hei-Flow Precision 01.r- In addition to the standard heads, which feature a 4 roller system, you can choose heads with 8 rollers to reduce pulsationr- No need to buy another bomb: adapt your single channel pump with an adapter for multichannel use and choose the head / cassette configuration that best suits your needsr- C4 Head: up to 4 small cassettes, 8 rollsr- C8 head: up 8 medium cassettes or 4 large cassettes (can be combined), 4 rollsr- C12 head: up to 12 cassettes small, 8 rollers. With integrated reduction gear, allowing feeding of smaller quantities.r- Small Cassettes: flow rate from 0.005 to 37ml / min. Compatible with tubes with walls 0.9mm thick. Diameter tubes available: 0.2, 0.5, 0.9, 1.4 and 2.8mm. To use the small cassette is required tube two stops Two-Stop-Tubing (40 cm). Retention devices holding the tube in place. The tube can be extended in increments of 1 cm by unions and extensions.rCombinations with C4 multichannel head: max. 4 small cassettes, with the multichannel head C12: max. 12 small cassettes.rCassettes medium: flow rate from 0.24 to 27 ml/min. Compatible with tubes with walls 1.6mm thick. Diameter tubes available: 0.8 and 1.7mm. The tube will be delivered in the size you ask.rCombinations with multi-C8 head: max. 8 medium cassettesr- Large Cassettes: compatible with tubes with walls 1.6mm thick. Diameter tubes available: 1.7, 3.1, 4.8 and 6.4mm. The tube will be delivered in the size you ask.rCombinations with multi-C8 head: max. 4 large cassettes