1.6 mm ID x 3.2 mm OD (1/16 x 1/8 in). It can be used with either a single tube or two tubes simultaneously. Two of the PC5 55-4148 Pump Head Tubing Pieces are included with the pump. Additional Pump Head Tubing Pieces (PC5 55-4148) may be purchased separately. Two front panel controls provide flow rates from approximately 0.8 to 24.5 ml/min. The control knob provides variable adjustment from 0 to 100% of the selected flow rate range. The second control is a two position toggle switch marked x1, x2 which selects low or high flow rates, see table to right. The easy-loading four-roller pump head is on top of the stout metal box. The back of the pump head effortlessly rotates into an `open' position and either one or two tubes can be dropped into slots. The loaded section simply rotates back against spring loaded jaws and locks into place. The tubing is automatically in proper wiping contact with the pump head rollers. Each Pump is provided with a 12.5 mm (0.5 in) rod clamp on the back so that multiple pumps can be mounted vertically on a lattice rod. Toggle switches for direction and x1 or x2 speed range selection Low electrical and mechanical noise Small size 50/60 Hz, Universal power supply, 10 W Pieces Have Connectors on Each End for 1/16 in ID Tubing 2.5 in, pkg. of 10 |