| 摘要 |
A unitary molded header element is disclosed accommodating a plurality of fittings for internally coated reverse osmosis or ultrafiltration tubes. A turn-around channel is provided for each pair of tubes inserted in the header. The turn-around channel is integral in the mold; it may be sealed from the butt end with a plug which may be sonic welded to the header. The header enables assembly of a unique module.
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