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Cole Parmer Masterflex L/S Easy-Load 3 Pump Head for Precision Tubing 77800-60***Preowned pump head with slight wear from normal use. 30-day warranty with purchase.(Please be advised that any warranty/guarantee/return policy provided from the seller is between the buyer and the seller only. Bid on Equipment is not and cannot be held responsible in any way. Please reference our Terms and Conditions for further information.)The Cole-Parmer Masterflex L/S Easy-Load 3 Pump Head for Precision Tubing, SS Rotor Model 77800-60features an automatic retention mechanism that makes loading and unloading tubing easier than ever. The spring-loaded occlusion lever opens the occlusion bed and simultaneously retracts the tubing retainers so that tubing slips right in. Close the lever and start the pump the retainers automatically grip and hold the tubing securely in place. The occlusion bed applies optimal occlusion force and the wide occlusion angle prevents fluid backflow up to the rated pressure of the tubing.Features:Mount and stack heads without tools or hardware; automatic tubing retention speeds setup and changeoverFlow range: 0.06 to 2300 mL/min depending on drive rpm and tubing sizeEach pump head for precision pump tubing accepts all six precision tubing sizes L/S13, L/S14, L/S16, L/S25, L/S17, and L/S18Twist-lock mounting feature lets you mount and stack heads in seconds.Included mounting plate adapts Easy-Load3 to L/S drives locking tab secures pump head during operation in either directionPolypropylene (PP) housing with CRS or SS rotorCRS rotor is more economical while SS offers greater durability and chemical resistance.Stack up to four heads to increase flow capacity and for multiple-channel applications; see individual drive specifications for maximum number of heads to be mounted.Specifications:Product Type Pump HeadAccepted tubing L/S 13, L/S 14, L/S 16L/S 25, L/S 17, L/S 18Rotor material Stainless steelHousing material PolypropyleneRollers Three; stainless steelOcclusion FixedAutomatic tubing retention YesDimensions 3.45W x 4.75H x 3.1D(8.8 x 12.1 x 7.8 cm)Brand MasterflexAdditional Prep Fees May Apply