Owner’s manual
Are wet dry vac filters universal?
Wet/dry vac filters are not universal. For a Craftsman 113177920 wet/dry vacuum, the filter has to match the vac’s filter cage and lid design so it seals correctly; using the wrong style can cause poor suction, dust blow-by, or leaks. Check the owner's manual for the correct filter type and usage.
Many “universal” cartridge filters fit multiple gallon sizes, but they still are not one-size-fits-all across brands and models.
- “Universal” often means a filter fits a range of canister diameters and cage styles
- Mounting method matters: threaded post, pull-on cage, band clamp, or twist-lock
- Seal surface matters: lid gasket area and filter flange shape
- Height matters: a filter that is too tall can crush or deform and leak
- Media matters: standard vs high-efficiency for fine dust
Your manual calls out that the filter must be in the correct position to reduce leaks and prevent damage. It also notes that a dry filter is necessary for dry pickup because a wet filter clogs quickly.
| Task | Filter installed? | Key tip |
|---|---|---|
| Dry debris and dust | Yes | Keep the filter dry for best airflow |
| Very fine dust (drywall, cement-like dust) | Yes (clean more often) | Empty drum and clean filter more frequently |
| Small amounts of liquid | Usually yes | Watch for reduced airflow as the filter dampens |
| Large amounts of liquid | Remove filter | Prevent saturation and exhaust misting |
A correctly fitted filter protects the motor, maintains suction, and keeps fine dust from exhausting back into the room. The manual also warns not to use the vac with a torn filter (except when vacuuming liquids as described).
- Confirm the model number is 113177920
- Match the filter’s mounting style to your filter cage
- Compare the filter’s diameter and height to your old one
- Choose high-efficiency media if you regularly pick up very fine dust
- Plan to dry the filter before switching back to dry pickup
To order the right replacement parts, use the model-based parts list for Craftsman 113177920 or search by model on Sears PartsDirect.
Last updated: February 2026
Can wet dry vac filters be washed?
Yes. On the Craftsman 113177920 16" wet/dry vacuum, the main paper filter is designed to be cleaned and can be rinsed with water when you need a thorough cleaning; the key is letting it dry completely before you pick up dry debris again. For the model-specific cleaning steps, use the 113177920 owner's manual.
- Unplug the vacuum before removing or cleaning the filter.
- Remove the filter carefully so you do not crush or tear the pleats.
- For heavy dry debris, tap the filter gently against the inside wall of the drum to knock dust loose.
- For fine dust, rinse water through the filter (hose or spigot); keep water pressure low so you do not damage the paper media.
- Let the filter air-dry fully before storage or dry pickup.
- To speed drying, reinstall the filter and run the vacuum with the hose removed for about 10 minutes.
Replace the filter right away if you see any of the following:
- Tears, holes, or split seams (even small holes can leak dust)
- A crushed filter that will not seal correctly on the cage
- Persistent clogging that does not improve after cleaning
- Strong odors or visible mildew after liquid pickup
| What you are vacuuming | Filter in place? | What to do after |
|---|---|---|
| Dry debris and dust | Yes; filter must be installed | Clean as needed; keep filter dry |
| Small amounts of liquid | Usually yes | Dry the filter afterward |
| Large amounts of liquid | Remove filter (recommended) | Dry any installed filter before dry use |
A wet filter clogs quickly when you vacuum dry dust, which cuts suction and makes the filter much harder to clean. Keeping the filter intact, properly seated, and fully dry helps protect airflow and reduces the chance of dust blowing back out.
If you need to look up replacement filters or other maintenance items by model number, we recommend starting with the parts list for Craftsman 113177920, or searching by model on Sears PartsDirect.
Last updated: February 2026
How do I know what shop vac model I have?
For the Craftsman wet/dry vacuum model 113177920, the model and serial number are typically found on the handle. Once you have that model number, you can match the correct diagrams, accessories, and repair parts list in the 113177920 owner's manual.
Check these common spots first (starting with the most likely for this model):
- Handle (model and serial number label is commonly placed here)
- Power head/top (near the switch or cord wrap)
- Tank/drum (back or side of the canister)
- Base (near caster mounts or storage feet)
If the model tag is worn off, we narrow it down by matching physical details and accessories.
- Brand name on the lid (Craftsman, Shop-Vac, Ridgid, etc.)
- Tank size (for 113177920, it is a 16-gallon wet/dry vac)
- Hose diameter and length (many use 2-1/2 inch hoses; this model commonly uses a 2-1/2 inch x 7 ft hose)
- Whether it has a blowing port and which adapter style it uses
- The nozzle set you have (wet nozzle, utility nozzle, crevice tool, blower nozzle)
Use this to confirm you are looking at the right family of wet/dry vac.
| What you see | What it usually tells us | Why it helps |
|---|---|---|
| Model/serial label on the handle | Exact model identification | Best match for parts and diagrams |
| 16-gallon drum size | Larger shop vac class | Narrows down accessory fit |
| 2-1/2 inch hose system | Common “shop vac” hose size | Helps match wands and nozzles |
| Blowing port on the vac | Blower-capable design | Confirms compatible blower setup |
Wet/dry vac parts and accessories are not universal. The correct model number ensures the right fit for items like the filter, hose ends, wet pickup nozzle parts, and blower adapters, and it prevents ordering the wrong repair parts.
Once you confirm the model number, use the parts list for Craftsman 113177920 to choose the correct replacement. If you are shopping across multiple models, we also support searching by model number on Sears PartsDirect.
Last updated: February 2026
What is the list of vacuum cleaner parts?
For the Craftsman 113177920 16-gallon wet/dry vacuum, the parts and accessories list centers on the vac assembly (motor cover and drum), the hose system, filters, and cleaning nozzles and wands. Our owner's manual shows the carton contents and the repair parts breakdown for this model.
These are the most common items referenced for the Craftsman 113177920 wet/dry vac:
- Vac assembly (motor cover and drum)
- Pos-I-Lock hose assembly and hose connectors
- Paper pleated filter (standard) and optional high-efficiency filter
- Extension wands
- Utility nozzle (general pickup)
- Wet nozzle (squeegee-style pickup for liquids)
- Car nozzle, crevice tool, dusting brush, blower nozzle
- Drum drain and caster feet (storage/rolling support)
| Part or accessory | What it’s for | When you typically use it |
|---|---|---|
| Filter (paper pleated or high-efficiency) | Protects the motor; captures dust | Always for dry pickup; keep it dry for best airflow |
| Hose and connectors | Moves air and debris to the drum | Every job; check for cracks or loose fits if suction is weak |
| Extension wands | Adds reach and control | Floors, ceilings, tight areas |
| Utility nozzle | General debris pickup | Shop floors, sawdust, mixed debris |
| Wet nozzle (squeegee) | Picks up liquids on smooth surfaces | Spills on concrete, tile, garage floors |
Using the right nozzle and keeping the filter in the correct position helps maintain peak suction and reduces leaks, clogs, and mess. For example, a wet filter clogs quickly when you switch back to dry pickup, so drying or swapping the filter keeps performance up.
We recommend matching parts by the exact model number (113177920) and the diagram callouts in the manual. You can also search by model number on Sears PartsDirect if you are shopping for additional accessories.
Last updated: February 2026
