
Replacement Cap, Standard Blue , 10/pk
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The B3000-CAP is the standard blue GL45 replacement cap for the hybex Media Storage Bottle family — 10 caps per pack at $42 ($4.20 per cap). The cap matches the original blue cap shipped with all GL45-thread bottles in the B3000 family (100–1000 mL packs + 2 L pack + 5 L / 10 L singles). Replacement-cap procurement supports end-of-life cap replacement when caps degrade through:
| SKU | B3000-CAP |
| Type | Replacement standard blue cap, GL45 thread |
| Cap thread | GL45 (standard hybex large-bottle thread) |
| Cap color | Blue (standard color-coding default) |
| Pack quantity | 10 caps per pack |
| Per-cap cost | $4.20 |
| Compatible bottles | All B3000 GL45 bottles: B3000-100-B, -250-B*, -500-B*, -1000-B*, -2000-B*, B3000-5L, B3000-10L |
| Sister cap SKUs | B3000-CAP2 (GL32 cap for 50 mL bottle, $41), B3000-CAP-HTC (high-temp red PBT cap up to 180 °C, $184) |
| List price | $42 |
| SKU | Thread | Material | Max temperature | Color | List price |
| B3000-CAP (this product) | GL45 | Standard PP (polypropylene) | ~120 °C (autoclave-safe with vented variant) | Blue | $42 / 10pk |
| B3000-CAP2 | GL32 (smaller bottle, B3000-50 only) | Standard PP | ~120 °C | Blue | $41 / 10pk |
| B3000-CAP-HTC | GL45 | PBT (high-temperature) | 180 °C | Red | $184 / 10pk |
Pick the standard blue cap (B3000-CAP) when:
Pick the high-temp cap (B3000-CAP-HTC) when process temperatures exceed ~120 °C (sterilization at higher temperatures, dry-heat sterilization at high temperatures, high-temperature reactions with bottle exposure). The PBT material handles up to 180 °C.
Pick the GL32 cap (B3000-CAP2) for the B3000-50 50 mL bottle only — the smaller GL32 thread is not cross-compatible with the GL45 family.
| Indicator | Replacement timing |
| Thread wear / loose seal | Replace when caps no longer seat firmly |
| Visible cracking / deformation | Replace immediately (sterility / contamination risk) |
| Gasket failure (if the cap has an integrated seal) | Replace when seal degrades |
| Post-autoclave damage | Replace if any visible damage from autoclave cycle |
| Chemical residue / staining | Replace if cleaning doesn't restore cap condition |
| Lost / misplaced caps in shared-facility workflows | Replace as needed from inventory |
Routine cap replacement cycle — facility-scale cap procurement supports ongoing cap-wear replacement.
Post-autoclave cap inspection / replacement — autoclave cycles stress caps; replacement-cap inventory supports immediate replacement when damage is observed.
Multi-investigator shared-facility cap inventory — facilities benefit from maintaining 10-pack inventory for facility-wide cap replacement.
Color-coded storage organization — blue caps for media storage; pair with B3000-CAP-HTC (red high-temp caps) for color-coded high-temp vs standard differentiation.
Educational laboratory teaching — undergraduate / graduate facility cap-management benefits from replacement-pack inventory for student-cohort lab management.
Confirm cap thread compatibility. B3000-CAP = GL45 only. For GL32 (50 mL bottle), order B3000-CAP2 instead.
Confirm autoclave protocol. Standard PP caps are autoclave-safe with vented variants — confirm vented vs solid cap inventory at order if autoclave use is the workflow.
Plan for ongoing replacement cycle. Caps are consumables — plan periodic replacement-pack procurement at facility scale.
Confirm at quote: cap thread (GL45), autoclave compatibility (vented vs solid), color-coding plan, and lead time.
Warranty: Per Benchmark Scientific standard consumable terms.
hybex replacement cap family:
- B3000-CAP (this product) — GL45 standard blue PP cap ($42 / 10pk) — workhorse replacement
- B3000-CAP2 — GL32 standard blue PP cap ($41 / 10pk) — for B3000-50 50 mL bottle only
- B3000-CAP-HTC — GL45 high-temp red PBT cap up to 180 °C ($184 / 10pk) — for high-temperature workflows
Pick the standard blue cap for routine GL45 bottle cap replacement; sister GL32 cap covers the 50 mL bottle's smaller thread; high-temp cap covers ≥120 °C process workflows.





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