CUV‑503 Filament Guard

This is a replacement sleeve for the SunSun CUV-503 UV-C steriliser, intended for aquarium keepers who need a spare part for this exact model. Because it is dedicated to the CUV-503, it is a direct replacement for that unit rather than a general-purpose accessory.

Why it matters

• Manufacturer original: the part is supplied as an original SunSun product, not a third-party substitute.
• Model-specific: it is designed for the CUV-503, so fit is defined by the model rather than by generic dimensions.
• Easy identification: the EAN 5903900045971 and symbol SUNSUN OSLONA ZARNIKA CUV-503 allow exact matching when reordering.
• Illustrative photos: the supplier notes that the images are for reference and the delivered item may look different, so check the model designation before ordering.

Specifications

• Brand: SunSun
• Compatible model: CUV-503
• Symbol: SUNSUN OSLONA ZARNIKA CUV-503
• EAN: 5903900045971
• Weight: 0.05 kg

What it works with

The sleeve is listed for the SunSun CUV-503 UV-C steriliser and should be used only with that model. The product data does not specify tank volume or other system parameters, so confirm that your setup uses the CUV-503 before fitting the part.