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MHW-3Bomber Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)

Item Number: a-BP7022L-OS

MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)
  • MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)
  • MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)
  • MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)
  • MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)
  • MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)
  • MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)
  • MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)
  • MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)
  • MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)
  • MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)
RRP $99.95 Save $10.05 Your Price $89.90

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Description

MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (LM)

p>The MHW-3BOMBER Astra Collection Bottomless Portafilter: 58mm Black (La Marzocco) combines a 632-hole precision filter, ergonomic grip, and full-metal design for La Marzocco machines. Shop now at Coffee Parts Australia.

La Marzocco-Compatible and Built for Precision – The Astra 58mm Bottomless Portafilter

Optimised for La Marzocco group heads, the MHW-3BOMBER Astra Collection Bottomless Portafilter (58mm Black/Black) provides clear visibility and clean extraction with every shot. Its ergonomic “obsidian” black handle, full-metal electroplated body, and ultra-precise 632-hole filter basket ensure consistent, diagnostic-quality espresso results with less channeling and more flavour clarity.

How the Astra Bottomless Portafilter Supports Consistent La Marzocco Extraction

  • Open-Bottom Design: Gives full visibility of the espresso flow to help diagnose and refine your tamping technique.
  • La Marzocco Compatibility: Specifically built to fit La Marzocco 58mm group heads—ideal for commercial barista use.
  • Precision Filter Basket: 632 perforations (Ø0.30mm) deliver even pressure and minimise fines for a cleaner shot.
  • Ergonomic Handle: Waist-style grip with smooth curvature provides control during puck prep and locking in.
  • Durable Metal Build: Made from SUS304 stainless steel and anodised aluminium alloy with an electroplated finish for corrosion resistance.

Specifications

  • Product Name: MHW-3BOMBER Astra Collection Bottomless Portafilter: 58mm Black/Black (La Marzocco)
  • Compatibility: La Marzocco 58mm group heads
  • Filter Type: Stainless steel precision filter
  • Number of Holes: Approx. 632
  • Perforation Size: Ø0.30mm
  • Recommended Dose: ~18g (may vary depending on grind and roast)
  • Material: Anodised aluminium alloy, SUS304 stainless steel
  • Finish: Black electroplated “obsidian” colour
  • Weight: Approx. 475g
  • Dimensions: ~235mm length, 80mm head diameter

Key Features of the MHW Astra Bottomless Portafilter 58mm (La Marzocco)

  • Precision 632-Hole Basket: Enhances extraction consistency and reduces fines migration.
  • La Marzocco-Specific Fit: Perfectly sized for 58mm LM group heads—no wobble, no guesswork.
  • Bottomless Flow Observation: View your shot live and improve your technique.
  • All-Metal, Detachable Construction: Durable for café workflows and simple to maintain.
  • Ergonomic Obsidian Handle: Comfortable and balanced for daily bar use.
  • Easy to Disassemble and Clean: Designed for fast workflows and hygiene.

Why Choose the MHW Astra Bottomless Portafilter for La Marzocco?

If you're running a La Marzocco machine and want to take control of your espresso extractions, this 58mm bottomless portafilter offers everything: visual flow feedback, ergonomic build, and café-grade durability. A core part of the Astra Collection designed for pros and passionate home baristas alike.

How to Use the Astra 58mm La Marzocco Portafilter

  • Step 1: Dose and distribute ~18g of ground coffee into your La Marzocco-compatible 58mm basket.
  • Step 2: Tamp evenly using a flat or spring tamper.
  • Step 3: Lock the Astra portafilter into the machine and begin extraction.
  • Step 4: Observe flow from the open base to check for channelling or uneven puck prep.

Maintenance & Cleaning

The detachable metal construction makes this portafilter easy to clean—rinse and wipe dry. Avoid dishwasher use or prolonged soaking. Small scratches or marks from the polishing process are normal and do not affect function. Always dry thoroughly before reassembly and storage.

Questions & Answers

  • Is this Astra portafilter compatible with La Marzocco machines?
    Yes. This version is designed to fit 58mm La Marzocco group heads. It provides a secure fit for most LM models.
  • Why choose a bottomless portafilter?
    Bottomless portafilters allow you to see the flow of espresso in real time, making it easier to spot channeling and refine your technique.
  • How many holes are in the precision filter?
    The filter basket contains approximately 632 holes at 0.30mm each for even espresso distribution.
  • Can I use this on an E61 machine?
    No. This model is specifically made for La Marzocco machines. For E61 compatibility, choose the Astra 58mm E61 version.
  • Where can I buy the MHW Astra 58mm La Marzocco bottomless portafilter?
    Order directly from Coffee Parts Australia to receive fast shipping and support on all MHW-3BOMBER Astra Collection tools.

Coffee Parts Thoughts

The MHW-3BOMBER Astra Collection 58mm La Marzocco Bottomless Portafilter delivers performance and polish. Its smooth grip and precise build help you dial in faster and correct channeling before it ruins your shot. Pair it with matching MHW-3BOMBER tools or explore our range of barista accessories and distribution tools to complete your espresso bench.

Specifications
Brand MHW
Model Bottomless Portafilter: 58mm
Suits LM 58mm Machines
Size 58 mm
Colour Black/Black
Country of Manufacture No
Shipping & Returns

Delivery time and costs

Parts, accessories, Brew Bar and Tea Bar

Standard delivery

From $8.95 2-7 business days*

Express delivery

From $9.95 1-3 business days*
Water filters

Standard delivery

From $8.95 2-7 business days*

Express delivery

From $9.95 1-3 business days*
Coffee grinders

Home grinders

Calculated at checkout 1-3 business days*

Commercial grinders

Calculated at checkout 1-3 business days*
Coffee machines

Home machines

Calculated at checkout 1-4 business days*

Commercial machines

Calculated at checkout 2-7 business days*

*Delivery timeframes are estimates and start once your order is dispatched.

Freight partners

Within Australia

Australia Post

TNT Couriers

Same day (Sydney metro)

Capital Transport

Civic Couriers

We ship using Australia Post eParcel and a range of courier partners within Australia and internationally. If you are in Sydney, you may also be able to choose same day courier options or Click and Collect from our Pagewood warehouse.

Shipping cost depends on the items in your cart and your delivery address. You can see the shipping price on the product page (where available) and at checkout before entering payment details.

Orders placed before 3pm (Sydney time) on a business day are typically dispatched the same day. Deliveries are made Monday to Friday, usually between 8am and 6pm. Standard and express options may be available at checkout depending on the item and destination.

For more details, visit our shipping and delivery page.

Warranty

Our products are supplied through Australian channels and are covered by Australian consumer guarantees and, where applicable, manufacturer warranty. For international orders shipped outside Australia, warranty support may require the item to be returned to Australia for assessment.

Easy returns

Most spare parts, accessories and brew gear can be returned within 14 days of purchase, subject to conditions and exclusions. If you paid with an eligible PayPal account, you may be able to claim return shipping costs through PayPal. For full details, read our returns policy.



p>The MHW-3BOMBER Astra Collection Bottomless Portafilter: 58mm Black (La Marzocco) combines a 632-hole precision filter, ergonomic grip, and full-metal design for La Marzocco machines. Shop now at Coffee Parts Australia.

La Marzocco-Compatible and Built for Precision – The Astra 58mm Bottomless Portafilter

Optimised for La Marzocco group heads, the MHW-3BOMBER Astra Collection Bottomless Portafilter (58mm Black/Black) provides clear visibility and clean extraction with every shot. Its ergonomic “obsidian” black handle, full-metal electroplated body, and ultra-precise 632-hole filter basket ensure consistent, diagnostic-quality espresso results with less channeling and more flavour clarity.

How the Astra Bottomless Portafilter Supports Consistent La Marzocco Extraction

  • Open-Bottom Design: Gives full visibility of the espresso flow to help diagnose and refine your tamping technique.
  • La Marzocco Compatibility: Specifically built to fit La Marzocco 58mm group heads—ideal for commercial barista use.
  • Precision Filter Basket: 632 perforations (Ø0.30mm) deliver even pressure and minimise fines for a cleaner shot.
  • Ergonomic Handle: Waist-style grip with smooth curvature provides control during puck prep and locking in.
  • Durable Metal Build: Made from SUS304 stainless steel and anodised aluminium alloy with an electroplated finish for corrosion resistance.