DISCAL 551 Series
DISCALDIRT 546 series
Aquastop Hydroscopic Safety Vent Cap for DISCAL 551 Series and DISCALDIRT 546 Series.
Reviewed by 1 customer
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Comments about Aquastop Hydroscopic Safety Vent Cap:
This hygroscopic safety cap is way more affordable than the similar product from B&G (If you can even find one of theirs).
The pictured product is the - Small anti-suction air vent cap, part number 562100, for automatic air vents.