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Round Bath Fan Grille With Slotted Spring Ribs
A 180 mm round replacement grille for older round-housing ceiling bath fans that no longer have a grille available. It covers housing openings up to about 170 mm and has a 104 mm vented field. Two upright ribs have 24 mm-long M3 slots, so a pair of standard replacement grille torsion springs can be bolted on with M3 screws and nuts at any spacing from 48 to 96 mm to match the spring slots in your housing.
Bath Fan Grille Torsion Spring Bracket
This bolt-on L-bracket replaces the broken spring tab on a ceiling exhaust fan grille. It fixes the grille that falls because its plastic spring tab snapped off. Put the 40 x 20 mm base against the back of the grille and fasten it with two M3 screws and nuts through 3.4 mm clearance holes, 28 mm apart. The 24 mm gusseted upright has two 2.4 mm holes, 10 mm apart, that take the hooked ends of the original wire torsion spring (about 1.5–2 mm wire). The part prints on its side, so the spring pull runs along the layers instead of across them.