Hanna Instruments Plastic Caps for HI93 Series Glass Cuvettes (Pack of 4) (HI731325)

Hanna Instruments Plastic Caps for HI93 Series Glass Cuvettes (Pack of 4)

The HI731325 is a set of four genuine replacement plastic caps designed to screw onto the glass cuvettes used with Hanna Instruments HI93 series portable photometers and turbidity meters. Each cap serves a dual purpose: it blocks stray ambient light from entering the sample cuvette holder during measurement, and its locking indexing tab ensures the cuvette is always inserted into the meter in exactly the same orientation for consistent, repeatable results.

Compatibility

These caps fit the glass cuvettes of Hanna’s HI93 series instruments, such as the HI731321 cuvettes and the HI93703 portable turbidity meter.

Why genuine matters

Optical measurements in photometers and turbidity meters depend on a controlled light path. Genuine Hanna caps are precision-matched to the cuvette thread and the instrument’s cuvette well, ensuring a light-tight seal that third-party alternatives may not provide. Using genuine parts protects the integrity of your chlorine, pH, and turbidity readings — critical for safe pool water management.

Keeping a spare set

Caps can crack, warp, or become lost during routine pool testing. Keeping a spare set of four on hand means testing is never interrupted. For a complete consumables refresh, pair these caps with replacement HI93 series glass cuvettes and Hanna cuvette cleaning solution.