Overview Vacuum tank filter bag, short and square. HydraMaster part number 000-049-029, listed in HydraMaster's own accessory pages as 14" × 18" (approximately 36 cm × 46 cm). The bag sits over the vacuum inlet inside the recovery tank and catches lint, fibre, hair and grit before the airstream reaches the in-tank filter and then the blower. Of the three HydraMaster bags this is the one to use where the tank is shallow but wide, and a long bag would simply fold on itself. Choosing the right shape 049-029 — Short and Square, 14" × 18" — this bag 049-028 — Long and Narrow, 7" × 34" 049-030 — Short and Narrow, 7" × 20" Important: measure the tank, not the machine. Truckmounts of the same model have been built with different tank arrangements over the years. If you are ordering for a machine you have not bagged before, check what came out of it. Specifications HydraMaster part number: 000-049-029 Nominal size: 14" × 18" (about 36 cm × 46 cm) Closure: plastic cord lock Bag dimensions vary slightly between production runs. Treat the size as nominal. Operating advice A wide bag has more surface area than a narrow one of similar volume, which is an advantage on lint-heavy work — but only while that surface is open. Empty and wash it rather than shaking it out. Check the cord lock as well as the bag. A bag that has slipped off the inlet is doing nothing at all. The rest of the vacuum path The bag is the first stage. Behind it sits the in-tank filter, and behind that the blower — the component the whole path exists to protect. A bag left torn or blocked simply moves the problem one stage downstream. Filter 2.5" Stainless Recovery Tank (049-008) Stainless Steel Recovery Tank Filter, CDS 4.7 (049-013) Frequently asked questions Is a wide bag better than a narrow one? Only if it suits your tank. A bag that folds, bunches or fouls the tank wall filters worse than a smaller one that hangs properly. Does it replace the in-tank stainless filter? No. Both are fitted, and both do a different job. How often should it be replaced? On condition — thinning fabric, holes at the seams, or a bag that no longer comes clean. Which bag suits my machine? The one that fits your tank and inlet. Measure the old bag, or send us a photo inside the recovery tank. Not sure which of the three shapes you need? Send us your machine model and a photo inside the recovery tank and we will pick the right one.
