Made by Think Crucial
3-Pack Bags for AstroVac & VacuMaid Systems
Shipping
Free U.S. shipping on every order
Dispatch
Ships in 1–3 business days
Fit
Fit guaranteed on the models listed
Returns
30-day returns
Check your model.
Type what's printed on your unit's rating label. The list narrows as you type, and only models we've listed come back as a fit.
Replaces part numbers 2 listed
- HPB2HPK
- HPB2H
It's on the rating label. Check the back, the base, or inside the filter door, and type the MODEL NO. line exactly as printed. The drawing is a guide; your label may sit elsewhere.
Fits these models 29 listed
AstroVac
- H1P
- P70
- SR36
- SR38
- SR52H
- SR760
- P80
- H2
- P73
- P75
- MK-IP
- MK-XXIIIBP
- ATQ300
- GV30
- GV50
- GV30PRO
- GV50PRO
- SR34
- SR50
Valet
- AT100
- AT120
Imperium
- CV280
- CV300
- CV500
- CV800
- CV20000
PowerKing
- PK-36
VacuMaid
- HV101 Hairvac
- SR800
Don't see your model? Compatibility not confirmed. Email support@thinkcrucial.com with the model number from the label before you order, and we'll tell you whether this fits.
Fit list checked Oct 2026 against manufacturer and parts-catalog sources
Brand and model names are used only to show compatibility. Think Crucial is an independent brand, not affiliated with those manufacturers.
The spec sheet.
- Fits
- H1P, P70, SR36, SR38 and 25 more
- Replace
- Every 3 months · Typical for central vacuum bags (no maker schedule found): about every 3 months
- Replaces part no.
- HPB2HPK, HPB2H
- Made by
- Think Crucial (aftermarket, not affiliated with AstroVac)
Think Crucial vs. AstroVac's own.
We only quote the other brand's price once we've checked it and can show you where.
| What | Think Crucial | AstroVac's own bag |
|---|---|---|
| Fits the models listed | Yes, listed and fit-guaranteed | Yes |
| Price | $26.99 with free U.S. shipping | Not quoted |
| If it doesn't fit | Prepaid return label, full refund, 30 days | AstroVac's own terms |
| Made by | Think Crucial | AstroVac |
Aftermarket means we make the part to fit the models listed. It isn't made by or affiliated with AstroVac. You get the same job done with our own build, and our fit guarantee on top.
When to replace it.
What owners say.
On thinkcrucial.com
No reviews of this bag on thinkcrucial.com yet. Bought one? Tell the next person whether it fit and how it's doing.
Bought it here? You'll need your order number and the email you ordered with.
On Amazon
4.8 out of 5 from 50 ratings on Amazon (as of Oct 1, 2026)
Ratings and reviews from Amazon.com for the same Think Crucial product, as of Oct 1, 2026. They are separate from reviews on this site and aren't counted in them.
Before you order.
Shipping, returns and fit work the same on every product.
Q01Will it fit my machine?
It's listed for 29 models, from H1P to SR800, and it replaces part numbers HPB2HPK, HPB2H. If your label shows a different model, compatibility isn't confirmed: email support@thinkcrucial.com with the model number before you order. If a listed model doesn't fit, we send a prepaid return label and refund you in full.
Q02Is this an original AstroVac part?
No. It's an aftermarket bag made by Think Crucial to fit the models listed. Think Crucial is not affiliated with AstroVac. We make what we sell.
Q03What if it doesn't fit, or I change my mind?
If it doesn't fit the model we list, we email a prepaid return label within 30 days of delivery and refund you in full; opened to test the fit is fine. Changed your mind? Return it unused in its original packaging within 30 days of delivery. The return label is free for these too.
Q04When will it arrive?
Shipping to U.S. addresses is free on every order. It ships from our fulfillment center in 1–3 business days and arrives in 3–7 business days.
Q05Is there a subscription?
No. You buy one when you need one. Nothing renews and nothing auto-ships.
We make what we sell.
Think Crucial started in 2007 at a family vacuum repair shop. Today we make aftermarket filters, bags and parts built to fit the machines you already own, plus our own descalers and cleaners. Most people can fit the part themselves. They just need the right one, and a way to check it first.
- Find the model number on the rating label
- Match it to the list on this page
- Not listed? Ask us before you order
Ready to order
3-Pack Bags for AstroVac & VacuMaid Systems
Fits 29 AstroVac models
$26.99Free U.S. shipping
Fit guaranteed: prepaid return label if it doesn't fit the model we list. 30-day returns.
Full product description
Three replacement paper bags for AstroVac, VacuMaid and Valet central vacuum power units. They replace the HPB2H bag. HPB2HPK is the order number for a pack of three HPB2H bags, so this pack is the same count as one HPB2HPK.
Fits
AstroVac, VacuMaid and Valet power units H1P, H2, P70, P73, P75, P80, SR36, SR38, SR52H, SR760, MK-IP, MK-XXIIIBP, ATQ300, GV30, GV50, GV30PRO and GV50PRO. More Valet, Imperium, PowerKing, AstroVac and VacuMaid models that take the same bag are listed at the bottom of this page.
Before you order
Look at the bag you're taking out, or your power unit's manual, for HPB2H or HPB2HPK. If it shows a different bag, email support@thinkcrucial.com with the model number first.
Is HPB2HPK a different bag from HPB2H?
No. HPB2H is the bag; HPB2HPK is the number for a pack of three of them.
Do you sell bigger packs?
Yes. The same bag comes in 6- and 9-packs, which cost less per bag.
Made by Think Crucial. Not affiliated with AstroVac, VacuMaid, Valet, Imperium or PowerKing; brand and model names are used only to show compatibility.
Also compatible with: Valet models AT100, AT120; Imperium models CV280, CV300, CV500, CV800, CV20000; PowerKing models PK-36; AstroVac models SR34, SR50; VacuMaid models HV101 Hairvac, SR800.
Brand and model names are used only to show compatibility. Think Crucial is an independent brand, not affiliated with those manufacturers.