Diffuser Refill Bottle Wholesale

Wholesale PET diffuser refill bottle sets for scent machine refills, aroma oil refills, cold-air scent machines and private-label fragrance packaging projects. Available in 20ml, 120ml and 500ml sizes with matched CRC caps.

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PET Diffuser Refill Bottle Sets for B2B Buyers

Unalilia supplies diffuser refill bottle wholesale options for fragrance brands, scent machine distributors, aroma oil suppliers, Amazon sellers, hotel scenting programs and private-label packaging projects. Our current ready-to-order PET refill bottle sets are designed for carton-based wholesale supply and are paired with matched child-resistant CRC caps.

These bottles are suitable for scent machine refills, waterless diffuser refills, cold-air atomizing scent machine refills, aroma oil refills and commercial fragrance replenishment programs. Buyers can choose different bottle sizes based on refill volume, end-use scenario, shipping method and landed-cost requirements.

Available Diffuser Refill Bottle Sizes

20ml PET Refill Bottles

Compact PET diffuser refill bottles for portable waterless diffusers, car scent machines, aroma oil samples and small refill programs.

Best for: sample kits, trial orders, portable scent devices and small-volume fragrance refill packaging.

120ml / 4oz PET Refill Bottles

Mainstream PET diffuser refill bottles for desktop scent machines, home diffusers, aroma oil refills and private-label fragrance products.

Best for: refill oil brands, scent equipment suppliers, Amazon sellers and recurring B2B replenishment.

500ml PET Refill Bottles

Large-volume PET diffuser refill bottles for hotel scenting, commercial fragrance programs, HVAC scenting systems and bulk refill supply.

Best for: hotel fragrance refills, commercial scenting programs and large-volume B2B replenishment.

Bottle and Cap Matching

Diffuser refill packaging requires accurate bottle and cap matching. Our PET diffuser refill bottle sets are supplied with matched CRC caps to reduce closure compatibility errors during wholesale purchasing. The 20ml bottle uses an 18/410 neck finish, while the 120ml and 500ml bottle options use 28/410 neck finishes.

Matched caps help improve sealing consistency, package presentation and order handling efficiency. Caps may be packed separately depending on carton quantity and final order arrangement.

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Air Freight and Sea Freight Options

Wholesale diffuser refill bottle orders can be reviewed based on the selected shipping method, carton quantity and destination address. Air freight is usually suitable for urgent replenishment, trial orders and smaller carton quantities. Sea freight is more suitable for bulk replenishment when landed cost is the main priority.

Online pricing may include shipping in the selected Air or Sea option, but final order acceptance is still subject to stock availability, carton quantity, destination address, freight review and order feasibility.

Formula Compatibility Testing

PET compatibility varies by fragrance oil formula. High-citrus, high-solvent or high-concentration fragrance formulas may affect bottle performance. Buyers should test the actual fragrance oil formula with the selected bottle, cap and liner combination before placing bulk orders.

We recommend sample testing and a 30-day compatibility and leakage test before large-volume orders, especially for cold-air scent machine refill projects and private-label fragrance oil packaging.

Custom and Private-Label Support

For qualified bulk orders, Unalilia can support custom logo printing, label application, shrink sleeve options, custom bottle color, cap matching and carton-based packaging planning. For custom logo printing or custom bottle color, the standard MOQ is usually higher than ready-to-order clear bottle supply.

Buyers preparing a private-label fragrance packaging project should provide bottle size, estimated quantity, artwork files, destination country, preferred shipping method and formula details when requesting a quote.

Need Help Choosing Diffuser Refill Bottles?

Tell us your target bottle size, carton quantity, destination country, preferred shipping method and customization requirements. Our team will review suitable PET diffuser refill bottle options and confirm order feasibility before final payment or production.

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