By Pentair Pool Products
Part # 4600-2173
Manufacturer Code 192173
Dimensions 16" x 10-1/4"
Top Grid Manifold w/ Extension - 192173
I have a Nautilus FNS 48 DE pool Filter. I have a slightly crack manifold causing DE to leak back into the pool. I need to replace the item. Will your Grid Manifold w/ extension #192173 Part # 4600-2173 work in my system. Thank you in advance for your help.
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Hi Steve, Yes, this manifold will work with the Nautilus FNS 48 DE Filter.
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I have a PAC-FAB FNS-48 DE filter. Its 22 years old and still working fine. Should last a couple years more I hope. My back wash valve needs replacing. Its leaking. Ordered one form local pool supplier and it was not the right one. I understand better ones out there than the one I got. What would you recommend? Looks like distance between center is 8 inches. Thx
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Last year I replaced the manifold on my Pentair nautilus FNS 36 DE filter due to a large crack along side the internal air bleed assembly causing the DE to bleed into the pool. I blamed myself for possibly mishandling it when I cleaned the filter.
The exact same problem has occurred this year with the DE bleeding into the pool. The manifold is cracked in the exact same area I know it was not due to mishandling the filter per lesson learnt from previous issue. What could be the possible cause?
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There are really a number of possible causes for such an issue. High pressure due to a dirty filter, high pump pressure, or back resistance from a return valve adjusted incorrectly could cause that. Even high chlorine chemistry causing some plastic parts to become brittle as well.
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