Cressi AC5 + Zen + Octopus Zen Regulator
From: Original price was: $968.00.$816.30Current price is: $816.30. inc. GST
Cressi AC5 + Zen + Octopus Zen Regulator: the base bundle includes the items below.
- Cressi AC5 Zen Regulator
- Cressi Zen Octopus
Optional extras are added only when selected.
- Description
- Technical Specs
- Additional information
- Shipping
- Returns & Exchanges
- Click & Collect
- Frequently Asked Questions
Cressi AC5 + Zen + Octopus Zen Regulator
For use in water temperatures above 10°C, the AC5 1st stage uses a simple unbalanced piston design, known for its ease of maintenance. Large hydrostatic openings ensure that each post-dive rinse is as efficient as possible, essential for extending the regulator’s lifespan.
Unique to Cressi is the AC5’s external 1st stage IP adjustment system. This allows service centres to fine-tune the intermediate pressure while the regulator is attached to the cylinder, providing a quick fix to keep it in use until the next service interval. The high-capacity conical filter, which offers a larger surface area than traditional flat filters, traps impurities before they damage the internal components of the 1st stage.
Compatible with parts from the AC25 and AC2 models, the AC5 shares a single maintenance kit for INT and DIN versions, simplifying and reducing servicing costs.
The ZEN 2nd stage adds lightweight performance and comfort to this hard-working setup. Its thermoconductive Polymer case offers all the benefits of metal but without the extra weight, and radial pressure openings evenly distribute water pressure across the diaphragm to reduce free-flows. This combination makes the Zen perfect for new divers using a regulator for the first time.
With its simple design, low-maintenance requirements and affordable price point, the AC5 + ZEN is a reliable and cost-effective choice for professional dive centres.
Cressi AC5 Zen Regulator Features
- Balanced Diaphragm First Stage For Reliable Performance
- Optimized Airflow For Effortless Breathing At Any Depth
- Lightweight And Ergonomic Second Stage Design
- Adjustable Venturi Effect For Personalized Breathing Resistance
- Easy Maintenance With Quick Disassembly And Reassembly
- Certification EN 250/2014 A over 10°
- Made in Italy
Warm Water Certified
•TECHNICAL FEATURES 1ST STAGE
• New piston 1st stage with INT or DIN 300bar connection.
• 4 L.P. ports, 1 HP port for optimal hose orientation.
• Direct external IP calibration system for precise pressure adjustment.
• IP calibration value: 9.5-10bar for consistent performance.
• New optimized 1st stage design for maximum flow.
• Conical filter for improved filtration in both versions.
• Single maintenance kit for both INT and DIN versions.
• Increased water passage slots for better pressure balance.
• Enlarged tool housing holes for easier servicing.
• CE EN250 certification pending for warm water use.
• Glossy finish with “Gun Metal” DIN wheel.
• Interchangeable parts with AC25 and AC2 models.
• Weight, INT version: 670g
• Weight, DIN version: 495g
TECHNICAL FEATURES 2ND STAGE
• Downstream system
• Adjustable Venturi effect
• Patented antifriction lever
• Dual-injection, enlarged purge button
• Radial pressure transmission openings
• Anti-scratch surface
• Bayonet-type cap holder with security lock
• Removable exhaust tee without tools
• Weight without hose: 149 g
Technical Specs
| Brand | Cressi |
|---|---|
| Main model / configuration | Cressi AC5 / Zen |
| Product type | Regulator |
| Regulator type | Regulator Set |
| Regulator connection | Din, Yoke |
| First-stage design | Unbalanced piston |
| Second-stage design | Standard downstream |
| High-pressure ports | 1 × 7/16 in UNF |
| Low / medium-pressure ports | 4 × 3/8 in UNF |
| Cold-water suitability | Warm water above 10°C |
| Breathing adjustment | Venturi adjustment |
| Intermediate pressure | 9.5–10 bar |
| Regulator set weight | Not confirmed — catalogue total and component weights disagree |
| First-stage weight | DIN: 435 g; INT/yoke: 600 g |
| Second-stage weight | 149 g without hose |
| Connection pressure rating | DIN 232 bar; INT/yoke 232 bar |
Additional specifications
| IP calibration value | 9.5-10 bar for consistent performance. |
|---|---|
| Weight, INT version | 670g |
| Weight, DIN version | 495g |
| Weight without hose | 149 g |
- Balanced Diaphragm First Stage For Reliable Performance
- Optimized Airflow For Effortless Breathing At Any Depth
- Adjustable Venturi Effect For Personalized Breathing Resistance
- Certification EN 250/2014 A over 10°
- New piston 1st stage with INT or DIN 300 bar connection.
- 4 L.P. ports, 1 HP port for optimal hose orientation.
- Direct external IP calibration system for precise pressure adjustment.
- Increased water passage slots for better pressure balance.
- Adjustable Venturi effect
- Dual-injection, enlarged purge button
- Radial pressure transmission openings
Cressi AC5 + Zen + Octopus Zen Regulator
- Unique to Cressi is the AC5’s external 1st stage IP adjustment system. This allows service centres to fine-tune the intermediate pressure while the regulator is attached to the cylinder, providing a quick fix to keep it in use until the next service interval. The high-capacity conical filter, which offers a larger surface area than traditional flat filters, traps impurities before they damage the internal components of the 1st stage.
Sources: Cressi 2027 Scuba Diving buyer’s guide; Current product information.
| Type | Din, Yoke |
|---|
Cressi AC5 Zen Regulator
| Type | Din, Yoke |
|---|
We dispatch orders five days a week, usually within 1–3 days. Standard mainland Australian shipping is $20. Click & Collect from our Hallam store is free once your order is ready.
- Large or bulky gear: additional freight charges apply on top of standard shipping: large dive bags $30; long freediving fins $15; long spearguns $20. Scuba tank freight is shown at checkout.
- Rural, remote & offshore: rural means anywhere outside metropolitan areas. Carrier availability and additional charges may apply, including for island and territory destinations. Our team will contact you if an extra freight quote is needed.
The available delivery rate for your order is shown at checkout.
We offer a 30-day exchange on most unused products within Australia when they are in saleable condition with their original packaging and accessories. Please contact us with your order number before returning an item. Change-of-mind refunds are not offered; this does not limit your rights for faulty products under Australian Consumer Law.
FREE CLICK & COLLECT
Usually ready same day*
Select local pickup at checkout. We will email you when your order is ready. Please wait for your ready-to-collect confirmation before visiting, then bring your confirmation email and photo ID.
Collect from our Hallam store
Factory 4 / 56–60 Hallam South Rd
Hallam VIC 3803
*For items in stock at our Hallam store during opening hours, subject to order processing. Available-to-order and special-order items take longer. Collection is unavailable while the store is closed.
Can I collect my order from the store?
Yes. Choose free local pickup at checkout and wait for your ready-to-collect email before visiting our Hallam store. Bring your confirmation and photo ID. See Click & Collect details.
How do I choose the right size?
Use the product's size chart where available and compare your measurements with the guide for that brand. Sizing varies between brands and products. If you are unsure, contact our team before ordering and we can help you choose.
How do I check availability?
Select your required options, such as colour and size, to see availability for that variation. If an item is marked “Available to order”, check the estimated dispatch information. Please contact us before ordering if you need gear by a particular date.
When will my order be dispatched?
Orders are usually dispatched within 1–3 days, subject to stock availability. Available-to-order and special-order products may take longer. Delivery time is separate from dispatch time and depends on your location and the carrier. Read our shipping information.
Can I exchange an item if it does not fit?
We offer a 30-day exchange policy on most unused products within Australia, subject to eligibility. Contact us with your order number before returning an item. Read the exchange conditions and next steps.
Can you help me choose the right gear?
Yes. Call 03 9702 3694 during store hours or email [email protected]. Tell us which product you are considering and how you plan to use it.
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