Collector arm / crepina Astralpool

Sand filter collector arm

The collector arm, also known as a crepina, is an essential component of the pool filter and plays a crucial role in the filtration system. Located at the bottom of the filter, its function is to distribute the water evenly through the filter media (sand or glass) and collect it once cleaned, to redirect it to the pool's circulation system.

In addition, the crepins act as a barrier that allows the filtered water to pass through, but retain the particles of the filter media, preventing this material from escaping along with the water. This design ensures efficient filtration and optimal system performance, keeping the pool water clean and crystal clear.

When changing the filter media, which is usually done every 5-6 years, it is essential to check the condition of the collector arms. If the crepins are clogged or damaged, water flow will be affected, which will negatively impact the filtration system. In addition, if they are broken or worn, they can allow sand or glass to seep in and be expelled through the pool nozzles, compromising water quality.

Characteristics of crepine collector arms

We have a wide variety of models with different lengths for you to choose from depending on the compatibility with your pool filter.

The collector arms have 3/4” male thread dimensions and the slot size is 0.3 mm.

Collector arm models

3/4” collector arm length of 225 mm

• 3/4” male thread
• Length: 225 mm
• 0.3 mm groove size
• Part number: 4404300712
• Includes 2 units
• Check the compatibility of the spare part with your filter here.
  
  

Manifold arm 3/4” length 160 mm

• 3/4” marcho thread
• Length: 160 mm
• 0.3 mm groove size
• Part number: 4404300120
• Includes 2 units
• Check the compatibility of the spare part with your filter here.
  
  

100 mm length for 3/4” collector arm

• 3/4” marcho thread
• Length: 100 mm
• 0.3 mm slot size
• Part number: 4404180117
• Includes 4 units
• Check the compatibility of the spare part with your filter here.