40g 28-400 SpH PET Preform

What this packaging is

A 28-400 SpH neck finish and 40-gram weight make this PET preform a reliable starting point for high-volume bottle production. The 40g 28-400 SpH PET Preform features a narrow, cylindrical form with a threaded 28mm neck designed to pair securely with the closure types common in surface cleaner, dish soap, and household wash packaging. Final bottle capacity is determined by blow-molding parameters, giving brand teams real flexibility in bottle geometry and volume. Available in custom colors with approximately eight-week lead times, and made in the USA for straightforward domestic sourcing. A dependable preform specification for brands scaling functional household and personal care lines.

Why brands choose this

• USA-made supply chain, simplified: Manufactured domestically, this preform cuts the customs complexity and extended lead times that come with overseas sourcing — a meaningful advantage for brands running high-volume household or personal care lines on tight production schedules.
• Blow-mold flexibility for custom bottle geometry: Because final volume is determined by blow-molding parameters rather than a fixed mold, brand teams can dial in bottle size and shape to fit their specific product and retail format — without being locked into a standard off-the-shelf bottle.
• 28-400 SpH compatibility across a broad closure range: The 28mm threaded neck finish is a widely used standard in surface cleaner and dish soap packaging, making it straightforward to match with compatible triggers, pumps, and caps already in a brand's toolkit — reducing development friction when scaling new SKUs.