A manifold arrangement for operably connecting to a plurality of filters ; the manifold arrangement comprising: (a)a first pipe having a first pipe outer wall surrounding a first open interior volume ; (i) the first pipe having a blank flange in the first interior volume separating the first pipe into an inlet section and an outlet section ; (ii) the first pipe outer wall having an inlet aperture arrangement in the inlet section ; (iii) the first pipe outer wall having a plurality of outlet apertures in the outlet section ; (b)a second pipe having a second pipe outer wall surrounding a second pipe interior volume ; (i) the first pipe being operably positioned within the second pipe interior volume ; (ii) the second pipe outer wall having a plurality of filter engaging apertures ; and (c) a plurality of spigots ; (i) each of the plurality of spigots being connected to a respective one of the outlet apertures in the outlet section of the first pipe outer wall ; and (ii) each of the plurality of spigots being in communication with a respective one of the filter engaging apertures of the second pipe outer wall ; and wherein the first pipe has opposite first and second ends , and the second pipe is between and spaced from the first and second ends of the first pipe . (a)a first pipe having a first pipe outer wall surrounding a first open interior volume ; (i) the first pipe having a blank flange in the first interior volume separating the first pipe into an inlet section and an outlet section ; (ii) the first pipe outer wall having an inlet aperture arrangement in the inlet section ; (iii) the first pipe outer wall having a plurality of outlet apertures in the outlet section ; (i) the first pipe having a blank flange in the first interior volume separating the first pipe into an inlet section and an outlet section ; (ii) the first pipe outer wall having an inlet aperture arrangement in the inlet section ; (iii) the first pipe outer wall having a plurality of outlet apertures in the outlet section ; (b)a second pipe having a second pipe outer wall surrounding a second pipe interior volume ; (i) the first pipe being operably positioned within the second pipe interior volume ; (ii) the second pipe outer wall having a plurality of filter engaging apertures ; and (i) the first pipe being operably positioned within the second pipe interior volume ; (ii) the second pipe outer wall having a plurality of filter engaging apertures ; and (c) a plurality of spigots ; (i) each of the plurality of spigots being connected to a respective one of the outlet apertures in the outlet section of the first pipe outer wall ; and (ii) each of the plurality of spigots being in communication with a respective one of the filter engaging apertures of the second pipe outer wall ; and wherein the first pipe has opposite first and second ends , and the second pipe is between and spaced from the first and second ends of the first pipe . (i) each of the plurality of spigots being connected to a respective one of the outlet apertures in the outlet section of the first pipe outer wall ; and (ii) each of the plurality of spigots being in communication with a respective one of the filter engaging apertures of the second pipe outer wall ; and <EOS>