Caps and Closures

Diamond Culture Tube Cap for 25mm Glass Culture Tubes, Yellow, 100/Bag, 5 Bags/Carton, CS500 (500 per CS)

Cap, Plug, 11mm, Natural, PK1000 (500 per PK)

Screw Cap, for Sample Tubes with External Threads, #'s: 6030-6059, White (1000 per PK)

Cap, Plug, 16mm, Red (10000 per CS)

Cap, Flange Plug, 16mm, Red, PK1000 (1000 per PK)

These colorful snap-on closures are an effective way to recap blood drawing tubes, glass test tubes and plastic culture tubes. They are precision molded from low-density polyethylene (LDPE) and maintain a tight seal during centrifugation, agitation and refrigeration procedures. They are available in bright translucent colors for sample identification purposes. The caps feature a single thumb tab for easy removal and close nesting in tube racks. (6000 per CS)

Cap, Flange Plug, 12mm, Green, PK1000 (1000 per PK)

These popular caps fit plain end culture tubes and flasks with DeLong style necks or ports. The caps are molded from durable, autoclavable polypropylene (PP). They are available in a full range of five sizes and five colors for easy sample identification and organization. Recommended tube diameter is indicated on each cap. (500 per PK)

38-400mm Polypropylene Cap/F217 Lined, CS100 (100 per CS)

63-400mm Polypropylene Cap/F217 Lined, CS100 (100 per CS)

20-400mm Polypropylene Cap Unlined, CS100 (100 per CS)

Cap for KIMAX Milk Dilution Bottles Narrow Mouth 28-400 black phenolic screw cap has a cemented-in rubber liner. (150 per CS )

Bottles B.O.D. RAY-SORB 300 mL with Glass Stopper B.O.D. Stopper Snap-Lid Qty. 50 The RAY-SORB process provides a shield to protect light sensitive products. As chart shows less than 1% transmission below 400 nm and reduced (5%) from 400-600 nm as compared to untreated clear bolosilicate glass. (50 per CS )

PTFE Standard Taper Key-Head Stopper Flask Length Joint Hollow color-coded grey. Standard taper size 32 with 21.5mm ground length. (6 per CS )

Caps closures Phenolic with 14B Rubber Liner (SBR) Size 38-430. Approx. Cap Height (mm) 26 Cap is made of a special phenolic material (mineral filled) to withstand the effects of repeated autoclaving. (150 per CS )

Caps closures Screw Thread White Urea with PTFE-Faced Foam Backed (F-2170) Liner GPI Thread Finish 13-425 (432 per CS )

Black Phenolic Cap 38-400 with a pulp/tinfoil liner. Caps are sold 144 per case in 12 bags of 12. (144 per CS )

Stoppers Glass Hollow Hex Head [standard taper] Full Length [standard taper] Joint 24/40 Hollow hexagonal head [standard taper] stopper. May be set on the flattened top to avoid contamination of the ground surface. (1 per EA)

ULTRA-WARE Flask Cap For use with ULTRA-WARE Microfiltration Apparatus. Standard tape. 40/35 outer joint. (1 per EA)

KONTESbrand HPLC Cap System Economy 3-Hole Cap Only ULTRA-WARE. The cap body is manufactured from PTFE and is supplied with a TFE/propylene o-ring and a polypropylene screw collar. The connecting threads on the top of the cap use standard 1/4-28 flangeless fittings. Two of the ports have 1/8 through holes the third port h (1 per EA)

Colored Starline Caps For Starline Narrow Mouth Containers Red Screw cap size: 13-425. New polypropylene caps are available in natural white red blue and green. Superior Double Seal Closure. Guaranteed to be leakproof. No-Drip Pour Lip. For safe clean dispensing. (72 per CS )

Colored Starline Caps For Starline Narrow Mouth Containers Red Screw cap size: 20-410. New polypropylene caps are available in natural white red blue and green. Superior Double Seal Closure. Guaranteed to be leakproof. No-Drip Pour Lip. For safe clean dispensing. (72 per CS )

Colored Starline Caps For Starline Narrow Mouth Containers Blue Screw cap size: 28-410. New polypropylene caps are available in natural white red blue and green. Superior Double Seal Closure. Guaranteed to be leakproof. No-Drip Pour Lip. For safe clean dispensing. (72 per CS )

Colored Starline Caps For Starline Narrow Mouth Containers Blue Screw cap size: 38-430. New polypropylene caps are available in natural white red blue and green. Superior Double Seal Closure. Guaranteed to be leakproof. No-Drip Pour Lip. For safe clean dispensing. (72 per CS )