CRC Caps for Diffuser Refill Bottles
CRC Caps for Diffuser Refill Bottles
Factory-direct child-resistant closure options for selected PET fragrance refill bottles. Compare 18/410 and 28/410 formats, then confirm the complete bottle, cap, liner and formula system before production.
Selected CRC Cap Formats
18/410 CRC Cap
Designed for selected bottles with an 18/410 neck finish, including our 20ml PET diffuser refill bottle set. Confirm thread, liner and application performance with the intended bottle and formula.
28/410 CRC Cap
Designed for selected bottles with a 28/410 neck finish, including our 120ml and 500ml PET refill bottle sets. The closure must be validated with the exact container specification.
Bottle-and-Cap Sets
Starting with a matched set reduces specification ambiguity, but the filled package still requires testing for your formula, filling method, torque and handling conditions.
Why the Complete Neck Finish Matters
A diameter such as 18mm or 28mm is not enough to confirm a match. The complete neck finish—including thread profile, height and sealing surface—must correspond with the closure specification. An 18/410 cap should not be assumed to fit every 18mm neck, and the same principle applies to 28/410 closures.
Liner, Torque and Compatibility Testing
Liner Selection
Choose liner construction according to the bottle sealing surface, formula and project requirements.
Application Torque
Evaluate closing and opening performance using the intended filling and capping process.
Filled-Package Test
Test the actual bottle, closure, liner and fragrance formula under planned storage, handling and transport conditions.
Child-resistant closure performance and formula compatibility must be verified for the final package and target market requirements.
B2B Supply, MOQ and Custom Options
Reference EXW pricing and MOQ are provided on selected product pages. Final pricing depends on cap specification, liner, color, quantity, packing and delivery requirements. Freight and other trade terms are quoted separately.
- Selected cap colors and liner options can be reviewed by project.
- Bottle-and-cap samples may be requested before production.
- Lead time is confirmed after the closure specification and quantity are approved.
What to Include in Your Closure Inquiry
- Bottle URL, drawing or physical sample
- Complete neck finish: for example, 18/410 or 28/410
- Required cap type, color and liner
- Fragrance formula type and filling process
- Quantity, destination and target delivery date
Confirm the Right Closure for Your Bottle
Send the exact bottle and project details so we can review the suitable CRC cap, liner, sample route and quotation requirements.