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Rola-Chem Pro Series 305 Peristaltic Chemical Metering Pump — 38 GPD

543818

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In stock. Usually ships in 1–2 business days.

Key Specs

Dealer-direct Rola-Chem. Chemical touches the tube, never the pump.

Max Output
38 GPD
Voltage
120V or 240V
Pump Type
Peristaltic
Max Pressure
30 PSI

The Pro Series 305 steps up to 38 gallons a day, which is where high-bather-load commercial pools and larger acid-feed duties land. Three-roller head, the same tube-only chemical path, and enough output that the timer usually sits well below 100%. Because the chemical only ever touches the tube, there is no seal, no diaphragm and no valve for chlorine or acid to attack — you replace a pinch tube instead of rebuilding a pump head.

Features and benefits

  • Peristaltic design — chemical contacts the tube only, never the pump internals
  • Built-in percentage timer with 0.6 to 900 second feed cycles
  • Up to 38 GPD output at 30 PSI
  • Tool-free roller housing for fast pinch-tube changes
  • Choice of 120V or 240V, cord or conduit entry

Who it's for

  • High-bather-load commercial pools
  • Acid-feed duties on larger systems
  • Operators who found a 12 GPD pump running near 100%

What's in the box

  • Pro Series 300 metering pump
  • Pinch tube installed in the roller housing
  • Suction and injection tubing
  • Injection fitting and hose clamps
  • Operating manual and wiring diagram

Before you order

Confirm the supply voltage at the pump location and whether your conduit or cord entry is required by local code. Check that your chemical is compatible with the tube material you order — clear Tygon for chlorine, black Tygon for acid. This pump is a metering device, not a transfer pump.

This product is offered in 6 configurations. Choose the power & connection and tubing that matches your installation before adding to cart — configuration is set at the factory.

Key Features

  • Peristaltic design — chemical contacts the tube only, never the pump internals
  • Built-in percentage timer with 0.6 to 900 second feed cycles
  • Up to 38 GPD output at 30 PSI
  • Tool-free roller housing for fast pinch-tube changes
  • Choice of 120V or 240V, cord or conduit entry

Who It's For

  • High-bather-load commercial pools
  • Acid-feed duties on larger systems
  • Operators who found a 12 GPD pump running near 100%

What's Included

  • Pro Series 300 metering pump
  • Pinch tube installed in the roller housing
  • Suction and injection tubing
  • Injection fitting and hose clamps
  • Operating manual and wiring diagram

About the Brand

Rola-Chem, a division of The Specialty Mfg. Co. based in St. Paul, Minnesota, has supplied chemical feed and control equipment to pool and spa professionals for more than six decades. Its Pro Series 300 peristaltic pumps and RC554XP and RC555XXP controllers are listed to NSF/ANSI 50, and the company operates under ISO 9001.

Specifications

Max GPD
38
Voltage
120V

Performance

Maximum Output
38 GPD
Maximum Pressure
30 PSI

Drive

Pump Type
Peristaltic, roller-driven pinch tube

Control

Feed Cycle
Percentage timer

Rola-Chem flow control products carry the manufacturer's limited warranty: products proved to have manufacturing defects will be replaced without charge within 6 months of the date of delivery. The manufacturer must be given the opportunity to inspect the product and its installation.

The warranty does not cover expense for removal, reinstallation or other consequential damages, and it is the manufacturer's sole warranty - implied warranties of merchantability and fitness for use are excluded.

  • Free standard shipping on most orders in the lower 48
  • Authorized dealer, full manufacturer warranty
  • Price match on identical in-stock items
  • Real pool experts on the phone: (817) 587-4397
Get it now. Pay over time.
Financing

Get it now. Pay over time.

Split any order over $50 into monthly payments with Shop Pay Installments, as low as 0% APR, no hidden fees, decision in seconds at checkout. Bigger jobs? Ask about net terms on a trade account.

0% APR On qualifying 4-payment plans
3–24 mo Monthly plans on orders $150–$20,000
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Frequently Asked Questions

Use our Request a Quote page and include the product, configuration, intended use, and delivery ZIP code. We reply within 12 business hours. You can also call or text us at (817) 587-4397.

Yes — pay by wire transfer or Zelle and save 5% on your entire order. Those methods carry no card processing fees, so we pass the savings straight to you.

Yes, on most orders. Free standard shipping is included on most orders delivered within the United States. Some oversized or freight-only items are quoted for your delivery address — the product page will tell you before you buy.

Yes. Orders under $1,000 split into 4 interest-free payments with Shop Pay. Larger orders — most of our equipment — split into 3, 6, 12, 18, or 24 monthly payments at 0%–36% APR depending on your credit. Checking your options at checkout does not affect your credit score.

Most eligible products have a 30-calendar-day return-request window. Written return authorization is required — do not ship a return before approval. Return freight on oversized items is at the buyer's cost and can be substantial.

Coverage follows the applicable manufacturer's warranty. We are an authorized dealer for the brands we carry and can help route eligible warranty claims. Contact us with your order number, product details, and photos of the issue.

Yes. We match the total delivered price for an identical in-stock item from an authorized U.S. retailer, before purchase or within 7 days after. Call or text (817) 587-4397 or email hello@pooldirectsupply.com to request a match.