No. C H 212.

“The only Form of Domestic Filter which the Profession can recommend.”—The Hospital.

TRAVELLING FILTERS.

J. DEFRIES & SONS.

No. C H 213.

Diagram showing action of
Nos. C H 212 and 213.

Material of Case Pints per Hour.Price.
No. C H212 Japanned Tin6£0 18 6
,,212a Electro-plated64 15 6
,,213 Japanned Tin181 18 0
,,213a Electro-plated186 12 6